My mum worked for many years as a SENCO and primary school class teacher and art/drama teacher on job share at inner London troubled schools in "rough" areas. Lots of problems were English were kids second language and parenting styles quite harsh compared to some English parents (very strict, beating, bible bashing etc). Before that she was in advertising, had kids etc. yes she did go home at 3.30/4pm and not much extra paperwork as SATs were just being brought in or had been brought in the year she left.
Neighbour worked at girls secondary school as head of geography, great but worked from 8am to 9pm marking eye most nights and barely relaxed on holidays, head was draconian addressed them by surname etc. she had 2 young children (5 and 2.5 and start of this year got pregnant and had her 3rd DC in September and left teaching for good whereas she'd been part time for past 2 years), she was fed up and tired of it all mentally and physically, she's not rushing back at all so she tells me.
My mum's friend (used to be deputy head in inner city primary school) runs a life coaching business specialising in coaching heads and deputy heads, went to launch of her book etc - interesting speaking to heads etc who are stressed, strained, and no idea how to handle it.
I know other teachers who work at academies etc and are exhausted and struggling and want to leave.
I do also know an ex solicitor who left and is now a teacher at his son's primary prep school, he likes it, different pace, smaller classes etc. that's the flip side. He prefers it to being a solicitor and is excellent with kids anyway.
What can be done? No idea but no one my mum included liked Gove and all his plans. It will only get worse I think.