Hi, my 21 month old DS has started hitting his 8 month old sister. He has been slapping her head, shoving her, and I saw him kick her once too. We have been saying no, don't hit people hitting hurts, removing him and trying to talk to him, and naughty step but he seems too young to understand it. Just don't know what we should be doing or if it will pass?
He's got a lovely nature otherwise, always gentle with our cat and us, and doesn't seem to be very jealous as she's been in his life since he was just 13 months so very used to her.
Any advice is appreciated thank you