I can only relay how it is for me, but gaming never went away, it just changed.
I don't play as much as I did before and when I do it's often a shorter game that is more focused on story. Like I look at my time and work takes up so much of it that my gaming habits had to change to make it work. I'm still not even half way through Witcher 3 main game for example and I love that game so much.
So don't stop playing video games because "it's not a grown up thing to do". Look at how much time you have and adjust the entertainment accordingly. Unfortunately giant JRPG's might not work anymore :/