@Lissm I think resentment is too strong a word, but I understand where you are coming from.
My parents were born in the thirties. My dad had a modest job and I know earned less than 20k when he retired on a full pension in the early nineties which still gave them a comfortable retirement, and my mum only ever worked part time as a shop assistant. However, they bought their house in the sixties for 1,100 quid which it is now worth well over 100 times that, with no mortgage obviously. Due to careful saving and a few investments (BT and British Gas shares etc) they also had savings at retirement of around 200k. They seem to have accumulated a huge amount of wealth, relatively speaking, given a very modest starting point. Nobody ever helped them and there was no inherited money.
Do I resent them this success? Not at all.
However.......
I only ever once asked my parents for a couple of thousand quid to help me out of debt when I was in my twenties. They did this, but my mum insisted that before they did I set up a direct debit to make sure they were paid back every last penny. And the first month the DD did not arrive (because the loan was paid off in full) she rang me to check it wasn't a mistake.
I didn't receive a penny when my dad passed away as everything went to my mum, which I agree with. However, she is now in a care home that will over time take away everything my dad earned, which does rankle with me a little, as I know he always thought he was building a nest egg to leave to his kids and grandkids. Especially when my mum (now in early stage dementia) insists that we are stealing money from her bank account when it is actually her care home fees coming out every month.
The one thing that does frustrate me is that my sister passed away recently without leaving a husband or children. She had always told me and my sister that she wanted her money to go to our kids (her nephews and neices) when she died, but as she was fairly young she never left a will. Her death was unexpected. So her money, including her mortgage-free house, will now go straight to add to my mum's pot of wealth, that will also be sucked into care-home fees with nothing left for our kids to see.
My mum does not see this as unreasonable, so any thought of varying the will to leave the house to her grandkids is rejected immediately, even though the money will end in the pockets of the care home so she will never benefit from it. It's her money and she isn't dead yet. Which I do agree with. But still...........
I am conflicted.