[QUOTE=spotmenow;8229029]
Maybe 3 years old is a bit of an exaggeration, but I’ve seen four and five years olds advertised for sale that are “starting to put together 3’ courses”. So I get what the OP is saying.[/QUOTE]
There is a huge difference in both the physical and mental maturity of an average three year old and a five year old. We breed and start our own. They are never sat on prior to age three, sometimes later if we get too busy, and start x-rails and small jumps at four or five. By their five year old summer it would not be unusual for them to be jumping 3’ courses. 3’ is tiny for most jumper bred youngsters. A competent pro doesn’t need to put a lot of jumps on a baby to prepare it for the pre-greens or .95m classes.