smart people can 100% be stupid too
To expand on that, people can be smart in one aspect and really fucking dumb in others. Intelligence is a spectrum, it’s not binary like you’re either smart or dumb. Plenty of people who understand quantum level physics etc. who are socially and emotionally at the level of children and vice versa and so on.
I mean I don’t know how big it was worldwide, but where I’m from there was like a whole trend some years back where teens would have these, landline telephone speaker/mics you plugged in to the headphone jack to make calls and they’d have it hang around their neck when not using it it was the dumbest fucking thing I’ve ever seen.