I must be lucky! I learnt to fly gliders ... from fields not runways!
It's a great way to learn. You get to appreciate surface, slope and obstical avoidance right from the start. No relying on the "image" of a defined runway for visual clues and therefore no danger of later seeing false clues when approaching wider, longer or whatever runways! You simply learn to fly by attitude, choose your landing site, adjust descent rate with airbrake or throttle and hey presto! pretty well perfect approachs every time!
Sound too simplistic? ... it isn't ... it's really easy ... well I've always found it so
IM