Depends on the ground you ride on, remember that a horse without shoes is better off on roads than a horse with shoes. Far less concussion on their legs. Find a good farrier who cares for your horse not about money and tell you if your workload is too much for your horses feet. A horses feet will grow quicker to meet the workload generally unless your horses feet are in bad shape. I have a cob who is barefoot and we ride out 6 times a week for a couple hours a day on roads and all tracks and we compete and her feet need to be trimmed! So ask your farriers advice.