I was bullied most of my way through school, so understandably hated it, but loved a lot of the work - the 'projects' where I could get on with things, the creative stuff, the reading and discussing. On balance, I think I am glad I went (although my parents would probably have been excellent HEers).
We live in Germany and I would love HE to be an option for us, not so much becaue of school per se, but because I am deeply unhappy with the German school system. However, HE is illegal in Germany. People have gone to prison before for HEing. German schools seem so far behind UK ones in terms of pastoral care and ethos (I get the impression that UK schools have moved on massively in this field since I was there), and the system is inherently socially skewed - and my dislike of that is not lessened by the fact that we are middle-class parents likely to be on the sunny side of the system.
So when the time comes - and thank goodness I don't have to start dses unil they're 6, no doubt will teach them a bit of reading and writing before then - I will look around extremely carefully.
My experiences have made me suspicious of institutions, but ds1 has just started at kindergarten and is loving it. I think so much depends on the child and the school.
While bullying might be inherently likely to arise in a school setting, I believe a good and well-applied anti-bullying policy can make a school a safe and caring place. I certainly do not agree bullying is something a child has to get used to as part of 'life'. What a dreadful attitude