Social emotional development is very important in the early stages of development. Children who are socially and emotionally healthy are children who will learn and flourish better (this is what I believe). And so if my child is having trouble with peer relationship in school then I would be a little concern.

there'll be good & bad friends, my child has to learn how to differentiate the two. & more importantly learn from experience

I am not worried but yes I always speak to my child on what is going on in school and whether he made new friends etc.

Not really worried, I would like my child to be slowly independent especially when they start preschool

My child is friendly and gets along with everyone. However, I worry he feels alone sometimes.

I feel it is learning journey and a opportunity to express emotions and explain it.

I'll get worried if my vhildren doesn't have frds in school, the other way round.

Not worried. In this way I can understand how my child widens her social circle.

They should learn to socialise. Else, they would be screwed socially as adults.

not really. teaches her to be outside her comfort zone and make friends