My mother was present for my judicial committee when I was 16. She cried through the whole thing. My non-JW father was invited, but chose not to come since it was on such a silly matter.
She was also present for my big JC just 5 days before my 18th birthday. I told the elders I'd meet with them if my mother wasn't present, but when I got there, my mom was there. Only because she told me right then and there that I was dead to her did I allow the JC to go on. Funny story on this one- all 3 of the elders cried before my mother did.
Now, I did have to meet with the Elders several times when I was younger, but mom was never present for those- she was letting the elder's say things she didn't know how to say (i.e. having sex, lying about things at school, etc)