Easy for you to say this if you're from Happysville, CA, USA, but if you're near Oakland or SF you know these kids DO form "gang"-like groups and block traffic, the bridge, swerve through traffic.
It's chill if the kids near you are respectful but the reason Gen Z as a whole ride these bikes is because they actively want to ride fast like motorcycles without license or registration.
I don't think any of these are apples to apples comparisons tbh your point still stands without the extreme analogy.