I've just realised that sounds way worse that I meant it to. I don't mean 'adult things' like stripshows or brothels and such like. Honest.
No, I'm referring to the natural parental desire to take your pride and joy to something you really love as an adult, hoping you'll inspire in them a passion for the same thing, only to be frustrated by the fact they have to be about 25 before they either be let in or be at all interested.
Many parents take their kids to things too soon. I once took my eldest son Finn, then aged 7, to a Cricket Test Match at the Oval to see England play South Africa and on that particular day the SA cricketer Hasheem Amla scored 300 runs.
So from an England point of view, nothing happened. Not even a wicket. Try enthusing a 7 year old to stay in a field for 8 hours watching someone they don't know hit a ball very slowly and gradually beating the team you support.
Except they don't support them anymore, because their father made them sit through that. And now he doesn't goto cricket ever. Or even read about it.
I have, however, had more success with music, and there is one festival that is brilliantly set up for both adults and very young kids.
It's a weird sort of parallel universe of entertainment where all the people that make things awful, well, they aren't there. Basically anyone aged between 15 to 35. Take that segment of society away and everything is really pleasant.
Literally everything.
You're really looking to appeal to the broadest possible audience aren't you? ('literally everything is better without 15 - 35 yos').