My parents are 80 and 70.
My mum, the 70 yr old was always healthy but in the last few years has had a lot of health issues including cancer.
I am a single mum, have 3 teenagers, work full time and live 100 miles away but can be there within 2 hours.
My sister lives in Europe and realistically is a day away and we don't really get on. She has a husband and kids and they both earn shitloads.
When my mum had cancer I was privvy to a lot more info via my dad than my sister and worried a lot more as my dad seems to panic a lot, and confides in me which is fine but tells me not to tell my sister (traditionally "daddy's girl".
My mum had a had a serious health issue yesterday. My dad emailed me (he's deaf so cannot do phone calls) and asked me not to tell anyone. I left it 24 hours and then did tell my sister as I felt it was unfair for her not to know.
I am now acutely aware I will be responsible for my aging parents as she is in a different country which actually is quite shit?