Please put in some sort of dirt control into the game.
A toggle would be fine but they could also add the Prestidigitation cantrip and let us use the many sources of water we find to clean off. Mending would be used for clothing/armour damage.
I like the mechanic itself but it should mostly affect melee characters and definitely should not affect characters that don't get hit. Simple exploring also should not make us look like we rolled around in the mud all day.