Childrens development is affected through many different factors which include both negative and positive explanations.
Positive
Gender
Both boys and girls are treated the same with the same opportunities, this will promote their cognitive, social and emotional development this mostly happened in education throughout the UK.
Social
Children with large families tend to become more sociable when they are older this is because they are used to being around others which also builds their confidence this helps to build their cognitive, language and social development this could also help develop their emotional state.