I'm a functional and successful adult despite doing plenty online behind my parents' back as a kid. I don't think that part of our upbringings had as much of an effect on us as you suspect.
And I also suspect you did not grow up with kids whose parents clearly would like them to go away and stop bothering them. I also did lots of dumb stuff in my parents' back. The nuance here is that when you know that your parents love you, you'll tell them once you do something that's actually harmful/a big mistake, because you trust they'll help you instead of punishing you. I've seen people make "questionable" life choices, in my opinion, because they've learned, consciously or not, to not seek help from others and always hide/blame on others every problem them encounter.