Personally I feel that games are just one form of entertainment among many, it's not all that uncommon for people to have points in their life where binging tv-series or reading books can feel more novel and interesting. It's also possible that one finds a new hobby or interest that develops in to a obsession taking most of the free time with it.

Sure as an adult you'll have more responsibilities and less free time to play but I feel that at least for millenials and zoomers gaming in some form or another will persist throught our lives. For some it may be few hours a day, for others it may be few hours a month but it'll still feel good to pick up that new/old title and have some fun.