I don’t have kids, but suggested something years ago to my siblings when they started confronting similar issues: we should do a version of “ontogeny recapitulates phylogeny” for personal computers.

Kids should start off with Commodore 64s, then get late 80’s or early 90’s Mac’s, then Windows 95, Debian and internet access (but only html). Finally, when they’re 18, be allowed an iPhone, Android and modern computing.

Parenting can’t prevent the use of LLMs in grad school, but a similar approach could be taken by grad departments: don’t allow LLMs for the first few years, and require pen and paper exams, as well as oral examinations for all research papers.