I love gliding but fall into a very typical glider demographic ... Young / old pilots.
I had time to fly gliders when I was younger and hope to fly them again when (if) I retire or semi retire. In the meantime it's just not possible to give up a day at a time regularly enough to make it work. It's common at many gliding clubs to find that the vast majority of the membership are made up of young and old, with not so many in middle age. Those that are middle aged, tend to be in well paid jobs with regular weekends off.
Maybe times have changed? But that's how I remember it when I was gliding. Don't let that put you off though as gliding is the purist form of flight IMHO and one I'd recommend to anyone.
SS