These are complex creatures having been completely conditioned in a very insular way from a very young age. Helping them let go of their conditioned responses to life and helping them find how to be safe in a life outside of the race track.
Many are shut down emotionally and require a very experienced trainer who completely understands how they feel to bring them out of all the negative emotions/behaviours and help them find pleasure as a riding horse. Because of their insular upbringing many leap in to making strong attachments with other horses and, as such, can then suffer from separation anxiety and introduced to normal field life with buddies.
This whole subject is, in itself, a huge issue. I will support and teach the owners how to make changes in their management back home so that they will be able to make correct decisions and continue to succeed in their future partnership.