He raises
He raises a foot when put on a boot it, gives a hand that it was thrust into a sleeve, etc.
About months when the kid is already capable to keep well balance in a sitting position and long sits, without securing itself hands, he gradually learns to take off socks, boots and a cap.
To this age it only incidentally could pull down or break from itselfhimself some clothes.
From months to years the child participates in process of clothing and an undressing already more actively, and by years is already able to take off all clothes itself.
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