We decided to keep out LB (4yrs) off pre school due to Covid. We are not worried regarding his education as he is doing really well. What we are concerned with is his lack of socialising with other children he currently only sees myself (mummy) daddy and a grandparent (in our support bubble). How do we teach him social skills like sharing etc? He gets awfully cross if we do something wrong and he doesn't win at a particular game.....