I think the pandemic has had a huge effect which cannot be underestimated. Like alot of people me and DH were working so DC both at home for a long time alone.
My DS (12)is very confident with talking to anyone, adults, teachers people he does not know. He is doing really well at school but, he does not go out with friends, not interested in extra curricular activities, would rather stay in the house, he can be very moody, short tempered and hates homework. Noone but myself and DH see this side. We encourage him to come out with us, try to instill the need to do homework etc. His bedroom is immaculate and he folds his clothes and prepares them for the next day.
My dd (13) was always the uncomfortably shy one, adults always made such a fuss about it, her not saying hello, it is like she was frozen, I didn't push her we just continued to demonstrate social etiquette. Dd has now gained confidence and will talk in class including to adults, still limited but, she does, I think she is an introvert but that's fine, she is doing well at school and has a small group of friends. I talk to her and she knows I understand her and as a result we have a great relationship she is however maddeningly untidy.
Both DC go to state secondary, I have always told them just try your best, I praise what they do, we have discussed university etc but there is no pressure, they need to do what makes them happy. My DC are individuals with their own personality, I encourage and support them to make the right decisions. They are well behaved so I don't care about what other children are like.
School but s important, parent and child relationship is important but, they are individuals, praise them for that, we don't need carbon copies. What happens is everyone wants to be a doctor. It is not all about status. Children have had the hardest time in the last couple if years. DC need to know it is ok to make a mistake and not do something they don't want to.
Children grow up fast enjoy and nurture them. I know that sounds perfect and at times I get fed up with it all but they are learning.