Every time my 15 month old stands up and starts walking around the furniture (he can't walk without holding on to something) my almost 3 year old goes over to him and tries to pull him down, or hugs and kisses him until dc2 sits on the floor and cries, when dc1 isn't around I hold him by the hands and walk with him all around the house and then only hold one of his hands so he walks next to me, but when dc1 is there he won't leave him in peace to walk, he is almost 16 months and dc1 started walking at 11 months so I'm starting to think he is preventing him from walking