My kids are adults now, but I what happened at school was for school to deal with as they saw fit. If my kids misbehaved I wasn't letting them off detentions etc. They only got detentions for not doing homework anyway.
At primary school I think I spoke to the teachers once about bullying for one of them, and that was dealt with straight away. I had to speak to them about my youngest being bullied and leadership had changed by then (leading to 26 members of staff leaving in a year) and was quite useless, all very "please be kind" with no consequences if they weren't. There was also other SEN stuff not happening, so I took him out to home educate.
With secondary the only contact I had was parents evening, and once I emailed one teacher that was leaving to thank her for everything she'd done and wish her the best.
A friend was a teacher and the parents were one of the reasons she left teaching. Plus the ineffective SLT who wouldn't back her up when she had to deal with the parents moaning that their precious Prince had been given a detention.
I worked as a 1:1 TA in primary and the parent slagged me off on social media because her son had been given a temporary exclusion. Meanwhile I was recovering from the beating, scratching and hair pulling her son had given me!