Merlins feet stay relatively free from mud, so dont really pick them out much at all....... I do check them after I ride, but not pick out..... just make sure that there are no stones stuck in them!!!
they get their feet picked out and washed before coming in and picked out before going out in winter, plus before and after being ridden so i can see if they have any signs of thrush or bruising
summer- once a day plus a good scrub once a week.and before and after riding.
all barefoot apart from the 5yo who has front shoes on due to a foot injury.
I pick Bear's out before I ride if Im not in a hurry, but I would know if he wasn't right, Buddie has his done before and after as he gets little stones stuck in his hooves.
before and after being ridden. I think that the more the hoof is messed with the more prone it is to infection (thrush etc), so I try to leave well alone.