@LoserWinner
I’d like to start with getting school children to address teachers by first name instead of Miss/ Mrs / Mr.
A big YES to that. First names would be far better.
My son went to a "strict" school where proper salutations had to be used in school, with the head being a "Dr Smith" and several teachers also having doctorates and having to be called "Dr Jones" etc.
But outside school, in residential outdoors trips etc., the teachers told the pupils to call them by their first names. My son said it was a revelation as it was so much more relaxed and casual and "barriers" between teachers and pupils were broken so much more easily. My son found himself sharing a canoe with the headmaster and initially called him "Dr Smith" and was pretty anxious as he wsa only 11, but he immediately said to my son "call me Dave" and it immediately broke the ice and son had a whale of a time in that canoe! That relaxed attitude continued throughout the week during mountain climbing, pot holing, etc. It was the same with all the outside school activities, clubs & societies, sports teams, etc - teachers told the pupils to use their first names!
Back at school the week after the outdoor adventure trip, it was back to "Dr Smith", but the barriers had been broken and son found himself a lot more relaxed talking to all the teachers (even those not on the outdoor trip) about problems with school work, other pupils etc., as it all taught him about "respect" when appropriate i.e. in lessons, but also that the teachers were actually human and not some different/strict species who were approachable.
We've evolved a long way since the "doff your cap" days. In most professions/workplaces, we don't have the "Mr/Mrs/Ms" crap when dealing with colleagues, line management, etc., so it's antiquated that schools still insist on it. A bit like the outdated attitudes on uniform. Schools need to move on into the modern world. It's the outdated attitudes that seem to cause a lot of the problems. Calling a teacher "sir" and having to wear a tie on a hot day aren't going to solve behaviour and achievement problems - they'll make things worse!