I try that kind of approaches as well, but the typical penalty would anyway at least include no YouTube, and since I unfortunately cannot fully trust them not t

I try that kind of approaches as well, but the typical penalty would anyway at least include no YouTube, and since I unfortunately cannot fully trust them not to (not entirely blaming them, it is like forbidding them to have candies without asking but placing the candy jar right in front of them), I'd still have the same problem.