Question about adaptation in kindergarten. About a week ago they start…

Question about adaptation in kindergarten. About a week ago they started going to kindergarten. As a mom it's hard for me to cope with everything. Today the teacher said to leave him at one o'clock. Last week was a difficult first day, then easier. After the weekend, the son went to kindergarten and such a strong crying fit was there. I already started thinking that maybe he is still too young. But I understand how much he needs kindergarten in terms of communication and routine. Because we don't have friends with children and contact with children practically doesn't exist. Today I came for him, but the son sat in another room and cried while other children were playing. It was very sad to see him. The child is