My sister and bil keep using my past mistakes as cautionary tales to their own children - its only a couple of things that I did when younger that I regret but have learnt to live with / try to forget (once taking something from a shop when I was 11/12 years old and the other going out with friends at 16, getting very drunk and staying out all night).
They've told me now that they've used both of these two particular instances to warn their children of not doing certain things. I am upset by this as it feels as if my mistakes are being rubbed in my face despite now being over 30 and not having done anything bad since/being successful and stable in life.
Everyone makes mistakes in life - them included, they're certainly not angels - but I don't think they should bring them up in this way as they're not giving much thought to my feelings and I dont bring up their mistakes every chance I get.
Their children aren't exactly the most tactful kids either and there's every chance they could say something to my child when they're older.
My sister gets quite defensive if I say anything but unless I do they will keep doing this. Am I being unreasonable to think they are out of order doing this?