Earlier quoted context omitted.
If you look at ChatGPT search volume, you can see massive dips during the summer when school is out: https://trends.google.com/trends/explore?date=today%205-y&ge... Which suggests that the most common use is as a tutor / cheating on homework.
This ignores people who open ChatGPT.com or use the app
The troughs in that graph are all during prime US school/college vacation times: Summer, Winter, and Spring breaks. And then magnitude of the fall corresponds to how long the breaks typically are. To me, that makes a lot of sense.