I just do the basic handling and leading/loading/feet etc and leave them to be horses until they are 3 or 4 then start some in-hand work. At his age he really just needs to be left with his buddies to grow and learn to be a horse first, they have such short attention spans at this age that anything more than 5 mins is going in one ear and out the other!!
It's odd he doesn't like being turned out - how many others is he out with, and does he get bullied? Mine are dying to get out once spring has arrived the boys spend hours wrestling and burning all that excess energy off, I leave them be for a few weeks until the novelty of spring grass has gone!!

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