I'm not sure how informed any 13 year old is, so this doesn't concern me - what concerns me is that most 12-15 year olds are just putting in massive hours on this nonsense. My partner's 13 yr old spends, no exaggeration, 8 hours/day on TikTok. If not more. I just started looking at access time on my pi-hole and router out of curiosity and it is disturbing. He is not an outlier.