Originally Posted by QHriderKE
I don't see any problems with my riding her at two, especially when horses are being shown under saddle at her age.
....I'm fully confident that it wont be hurting her.
I too don't think that *a little, very light* riding is *necessarily* harmful to a 2yo, *depending on specifics*. But I don't think the fact that many people do ride babies is any justification, let alone evidence of lack of harm, as evidence shows the contrary actually. Many horses are 'washed up' by the time they're only teenagers after all... horses such as racers & futurity prospects are often out the game much younger.
Dr Deb Bennett's studies on development and maturity of horses(& physical problems of racehorses in this regard) is one good source you can look into to learn more, if you think it important.