I remember reading somewhere that at 14 human years Ems roughly 30 in horse years but there doesnt seem to be a direct comparrison like with dog years, anyone got a rough guide?
I'd say 3 as well - I have a 15 year old son and a 5 year old horse - they're pretty similar really. They think they know everything, can be a bit bargy if they don't get their own way, and they fall over their own feet. But I love them both.