Since you're equating playing games with being an infant, you're very clearly losing out on something because you're definitely missed the point.
Or you're just being a dick because that's your idea of adult fun. Which is just plain fucking sad.
Not really, although I guess you can draw that conclusion if it makes sense to you. I was just objecting to the line of reasoning that goes "oh you don't like arcade games anymore and I can't think of anything else that's fun so there's nothing else fun in your life so you're a sad old grandpa".
I mean if you get a kick out of arcade games then more power to you. Anything that makes you happy is a good thing. Just don't decide that anyone who doesn't have exactly the same tastes as you is unhappy.
There's plenty of other fun things in life besides arcade games. Trolling for mod points on Slashdot, for instance.