The college essay
The essay carries more family anxiety per word than any other part of the application, largely because what it is actually for is rarely spelled out. It is not a writing test.
What it is actually for
Everything else in the application is a number or a list. The essay is the only place a reader hears the student's voice, and its job is to make one specific person recognizable on paper.
That is why the advice to write about a dramatic experience misfires. A reader who finishes an essay knowing how a student thinks, what they notice, and what they care about has got what they came for. The subject can be small. Most of the best ones are.
The two kinds
The personal statement goes to most schools through the Common Application, runs to about 650 words, and answers one of a handful of broad prompts. Written once, most of the time.
Supplements are the extra questions individual schools ask, and the most common is some version of "why us." These are shorter, there can be several per school, and they are where a lot of applications quietly fail. A "why us" that could be pasted into another school's form reads exactly as generic as it is. Answering it well requires knowing something specific about the place, which is one of the real payoffs of a campus visit.
When it gets written
The summer before senior year is the window that works. Applications open in August, the first deadlines land in late October or early November, and a student writing essays alongside a full senior course load and supplements for eight schools is a student who will submit something rushed.
A workable order: draft the personal statement over the summer, put it away for two weeks, revise it once school starts, then spend the fall on supplements, which is where the volume actually lives.
Nothing about this belongs in 9th or 10th grade. There is no groundwork to lay and no head start to be had.
The parent's role
This is the part worth getting right, because the failure mode is specific and admissions readers catch it.
Useful: keeping the calendar, reading a draft and saying which parts sounded like your kid and which did not, asking questions that make them say more, and noticing when they need a week away from it.
Damaging: rewriting sentences. An essay that has been smoothed by an adult reads like an adult wrote it, and it costs the student the one thing the essay exists to provide. Readers see thousands of these a year and are good at spotting them. A rough sentence in the student's own voice beats a polished one in yours, every time.
The most useful thing a parent can say to a draft is that a particular part sounded like them, and to ask what happened next.
Using AI to write it
Worth being blunt about, because the temptation is obvious and the downside is lopsided.
It is treated as application fraud, and your student signs a statement to that effect. The Common App's fraud policy covers submitting the output of an AI system as your own work, and every applicant certifies to it at submission. Running a spellcheck is not what this is about. Generated sentences are. A school that concludes an essay was not written by the applicant can rescind an offer after it has been made.
Detection runs wrong in both directions. The tools that claim to identify AI writing are not reliable enough to convict anyone, and they produce false positives on real student writing, particularly from students who write plainly or who learned English as a second language. That cuts against your kid as easily as for them.
Keep the drafts. A growing number of high schools now ask to see draft history on major work, and it is a good habit whatever anyone requires. Working in a document that saves versions makes revising easier, it shows the thinking, and a messy first draft is the most convincing proof there is that the writing is your child's own.
And it forfeits the only thing the essay does. The parent trap above has an industrial version. An essay smoothed by an adult reads like an adult wrote it; an essay produced by a model reads like nobody wrote it at all. Readers who see thousands of these a year describe the same tell: competent, organized, and empty of any particular person. The essay is the one place in the application where a specific person is supposed to be audible. A generated draft has nobody in it.
There is a version of this that helps, and it is the model as a reader instead of a writer. Have your child explain a draft out loud to something that asks follow-up questions. Ask what a reader still would not know about them at the end. A good teacher does the same work, and the rule holding all of it together is that the submitted sentences have to be their own.
Whether the essay will still matter
This is the part of the process most likely to look different by the time a current 9th or 10th grader applies. Nobody knows how.
The essay's value to an admissions office has always rested on an assumption: that it came from the student. Once that assumption is widely in doubt, the essay stops being reliable evidence, no matter how good any individual one is. Admissions offices are aware of this, and the question they are working on is what to trust instead.
The plausible answers are already visible in what schools have started doing: more weight on interviews, on graded work produced in class, on writing done under supervision, on recommendations from people who watched the student work, and in some cases a return to test scores as the thing that is hard to outsource. Worth being precise about one of those, though. Asking for a graded, teacher-marked paper is not a new response to AI at all; some selective schools have wanted one for well over a decade, and it is being reached for more often now rather than invented. Any of those could win. It is also possible the essay survives largely intact, because the alternatives are expensive and admissions offices are not.
If you have time on the clock, that narrows down to something useful. The advice on this site that is stable is the grades and course rigor advice, because no plausible version of this change makes transcripts matter less. The advice specific to essays is the advice most likely to be revised. If your child is two or three years out, that is one more reason not to spend 10th grade preparing for the essay, and to check what the schools on their list ask for when the time comes, instead of assuming today's rules still apply, which is why essay preparation does not appear on the list of things worth doing now.