Hi HC,
I wouldn't worry too much about the 'burden' you placed on your sons. Kids are resilient, and no doubt found ways of handling the pressure and making their own entertainment - I know I did!! Yeah, I got a lot of crap at school, and felt like a misfit most of the time, but I also enjoyed the associations at the KH - especially with young couples / singles - they were always much more liberal minded than your own folk, but you could keep your own folk happy by associating with them!!
A part of me resents my upbringing - missed out on many things, but I'm also thankful for it too, because I feel I have a more 'rounded' attitude than most of my age. I'm sure, on reflection, your own sons would probably say the same.
You can't ask anything more from a parent, only to bring you up in the best way they know how, and then let you take the reigns on your own life, and respect your decisions - offering support and help when needed. It sounds to me from your posting, that that is exactly what you have done.
Bull!