*hic*
village idiot :D
12 stone weight limit would put most men out - of course if riding needs to be perpetuated as a women only hobby, that's fine. 12 stone would be borderline underweight for a 6'2 man - My OH at 6' is about 12.5 and about in the middle of the "Normal" line, and he's a very slim build with light bones. An average built man would probably be over at 6' tall.
I have to say I agree with this. Where my horses are at present has a weight limit of 12 stone, I only know of one man who rides there on a school horse and I think many men would be over the limit.