What do you say about grown people who play video games?

Nothing wrong with it if it doesnt consume your life.
If it helps you unwind and relax after a day of working and whatever else, thats great.
If you put off work and so on to play video games thats very different though.

Id say [media=https://youtu.be/KTK2OBi-IlM]

I will still be playing video games when I am in a retirement home
(If I make it to then)

If the world didn't want adults playing video games, the adult parents shouldn't have got us video games as kids.

Its literally all their fault.

Meh, they could be doing worse things, so it's no big deal

One of these days they'll wake up in Hell and wonder how they got there.