I had a very stable childhood. 2 parents who parented well together, was a bit spoilt by dad as was the only girl, got along with my siblings and had a close extended family.
Sounds great on paper...turns out I was just a sheltered kid and ignorance is bliss. My parents chose to keep all their own drama from affecting us and made keeping our homelife as stable as possible the priority and that close extended family stepped in where needed to make sure it happened.
My mam was diagnosed with life-limiting cancer when I was 6 and had 10 years to live, she got 7 in the end and was in good health until the last two years. I only found out the details on this when I was in my 20's as a kid I just was told she wasn't well and that sometimes she took trips to the hospital help make her feel better..and they did so we just rolled with it because it was our normal and we were still at home and in routine of school, sports, etc. I only really knew she was really sick and how bad it was at end-stage and hospice involved and she was actively unwell.
My dad died of cancer when I was in my late teens, that was more life rocking as I was older and it was more sudden/unexpected. I hadn't realized he was terminal until got the call to come home to say goodbye as he had a sudden deterioration. I'm still a bit hurt he didn't let us know bad it was because I would have chosen to spend more time at home rather than Uni (which is exactly why he didn't tell me!) In hindsight I should have realised how bad it was sooner but as I was used to hospices and palliative care meaning bad not hospitals visits etc didn't trigger as much worry as they should.
It's definitely shaped the person I've become.
I'm horribly independent and quite happy to take on new things. I'm naturally introverted but not a doormat and capable of being assertive when I have to,but tend to be laid back about things overall. Because at the base of it I know I can handle almost anything life throws at me. I don't overthink things and tend to just let things go unless they are serious. I also tend to live in the moment and try and appreciate every day as it comes...because when you realize you might not reach 50 or retirement it changes your longterm outlook to life I think....but thanks to early childhood stability I still value having a good base of stability in my life and I do think about what I want to prioritize day today -so I finished uni and work in a profession I enjoy that also allows me to travel etc.
Relationship wise however I'm a bit wary of getting to closely attached to people and take a long time before I let people into my life completely, have many more close female friends than male... I've had several longterm enjoyable relationships but no permanent ones. So not completely unscathed I guess.
Everyone is shaped by their experiences. But I do believe we also chose our own actions in day to day life.