I earn twice as much as my mother ever did, and currently as much as my father did at the end of his career, and I work part time. DH earns more than I do right now because he's full time.
My parents chose for my mother to stay home while we were little, and so paid out over 70% of their earnings on housing and living costs. Again, this was a choice they made to ensure we lived in the way they wanted us to, in a place that would give us opportunities. They supported us, physically, in a massive way.
We have chosen for me to stay in work because long-term the financial return of that will allow us to give our family the life we want. We also chose to wait until we were financially stable to have our child and to only have one. We bought our very modest house in a very good area while I was pregnant.
Our choices means we pay out over 70% of our income on housing, childcare and living expenses at the moment. Me continuing to develop my career means I have a flexible enough schedule that when she's at school I can do drop offs and pick ups and we won't need wrap around care. So the savings will be significant once nursery fees are gone.
My parents see that our costs are high right now but know that this is choices we made in our lives. They are not responsible for changing our situation, which we're in because we chose to be.
They still offer physical and emotional support. But the amount of sacrifice and support they gave us in childhood and up until we moved out is what meant we were able to make these choices in the first place. If we'd made bad ones, or different ones, it's still not down to them to bail us out of our choice financially.
And most decent people wouldn't take their parents nest egg. It's a choice. Even if offered.