School Grading Separates Sibs...

So, my sister was a year younger than me and so we were in different grades at school. This meant that we never saw each other at school nor did we have the same social circle, teachers etc.

Looking back, I think this really made us grow apart from a young age. Now I am in my 40's, I really have a sense of loss at not seeing her during the days at all. There were other forces that made us distant too but this really did have an impact.

Should sibs be separated in the early years?