Thats just written off all his chances of learning to fly then. Yep fly gliders, they don't go anywhere, except round in circles, you will stand around all day freezing to get a flight after you have pulled,pushed and generally dogsbodied heavy fibreglass around hoping to get some in.
Hahaha, pretty much sums up gliding in the UK
I love glider flying. Haven't done anywhere near as much as I'd like, but I did start with it and found it thoroughly enjoyable.
However, as the hours don't really count (or a very small percentage do), it's the kind of thing that isn't as important as powered flying, if you just want to get your hours and your license.
I am not going to argue though that glider flying, in my experience, is a bit more involved and certainly trains with regards to weather etc, and as Mary says, once you've got your PPL and some gliding experience under your belt, you may find that the gliding club gives you control of a tug