I'm a class TA in a year 4 class. We have a large number of children who struggle to behave in class (about 7). Some are because they have very dysfunctional homes and some because of things like autism. SLT doesn't provide much in terms of backup, but I think we've done a good job. Older TAs have made many comments to the teacher (who is early 20s) and I like 'they won't be behaving like that with me'. I find it so undermining for her and the teacher is now crying about it a lot.
Is this undermining common in schools? I've only worked at the one school and it has been like this for years.