We have to wear shoes so our feet don't get smelly.
If we don't wear socks we will get toe jams.
If we just wear socks on the ground we will have prickles.
So if we don't wear socks our feet will get wet and slippery and we will fall over.
If we wear bare feet we might get cuts on our feet.
We have to wear our shoes on the ground because we might get dirty.
If we wear our socks and jump in the puddles our feet will get dripping wet, then they will be smelly and stinky - that's why we have to wear shoes so our feet don't get smelly and stinky.