Back to school time gives me chills (not in a good way)

Back to school time for me reminds me of when I was in school (I have no kids).  Anxiety.  Bullying, kids poking at each other.  I get it, to a point.  Kids will be kids. I recall teachers turning their backs, or even laughing.  I went to a Catholic School and I remember one Nun, Sister Andrina, pulling my ears.  Sister Mary Jane making every kid sing a solo in music class.  Not everyone has a "pleasant" singing voice and it really embarrassed the kid (like me).