There are goods and bads to this. See I ride at a barn but for riding I also take care of the horse and he is basically mine. I ride im all the time for free to keep him in shape for his owner. Not only that though but I pretty much have free pick to any other horse I wanna ride too but I mainly keep it to Junior. This is a good for her because I keep Junior in good shape and he looks nice and gorgeous and everything.
There is a bad to this though. I can ride Junior with no problems but since his owner is not riding him as much as me she has to fight him sometimes when she gets on him because he wont listen the same way. I don't know why but he does that to anybody new that rides him now and when I ride him he has no issues.
So there are goods and bads to this but if you do it I would suggest still coming out and seeing ur horses and riding them still unlike Juniors owner she only comes out once every couple months and rides. Its been about hmma month or two since she rode him at the moment so yea. I would suggest once a week or once every other week you atleast ride ur horses to make sure they still listen to you. Oh and if ur horse changes some don't blame it on the person that's riding its only because ur horse will get used to their style of riding I would suggest teaching the person that's going to ride ur horse the way that you ride so that ur horse doesn't get as confused.