It can makes sens for some, Paladins for instance, to put order before good, the lawful evil.
But murder-hobos are gonna blast anyway.
imo if your players all just want to fight take them to a place full of hostile creatures or in a full on war at that point. There's definitely some creative interest for the DM in both of those I think.
Yeah education and prevention were always the best measure against addictions. But when it's something deeply ingrained in society it takes time to move on. I like to think society is it's own living thing, evolving much slower.
I'm only 25 so I don't have much responsibilities to hide behind and feel adult. Not that i'd like them, I kinda have a fear of them, sometimes.
Although, being a young adult, I especially get this feeling alongside feeling lost.
When your an adult there isn't anything guiding you, so like the child without guidance you're lost. It's then you see life's pointlessness, because the only point of living were always the arbitrary goals others gave.
In that regard responsibilities are also outside goals that guide you.
In a more joyful note, I don't even know why fun should be childish but it's amazing to be at all age.
Those two facts alone are what makes me think of how similar I still am to the child me.
When i'm wrong, i'm usually right to be wrong.