It's a bit doom and gloom isn't it? I had my DS when I was 44, he's now coming up for nine (I'll leave the calculation to you ha ha!) My DH was 50 years old.
I have no idea what the future will bring - but neither does the 24 year old having her first child. I may live until I am 80 plus (like my mum) or die when I am 64 (like my dad).
All I will say is that our DS is not unique in his school. In the toddler group I went to with him when he was a tot we had 4 of us over 40, 6-7 in their 30s and only 2 or 3 in their 20s. Maybe it's the area we live in, I don't know, but we have a lot of older mums. Some are on their 2nd or 3rd child, some on their 1st. And being in our 50s now doesn't mean we are on a zimmer frame! DH is capable of having a game of footie with DS, teaching him to ride his bike and I am capable of taking him swimming, chasing him round the garden (when he was younger) and making time for him when he wants to show us his lego creation or needs help with the homework - just like a parent in their 30s.
As for the 30 year old woman who was saying she was 'giving up her life and career for her older dad'. Well, she mentions her mum was 32 when she had her. That makes her mum 62 years old - hardly ancient! Even if her dad is now in his 80s, most women are still working at 62 and those who do retire early are often on child care duties for the grandchildren or doing their own, well earned, thing with life. She doesn't mention her mum - possibly she's already dead (in which case she died very young by today's standards). But if she's around why is all the work (or so it seems) falling to the daughter? She doesn't give you much to go on other than she does all the running around.
Well, so do I. That 80 plus year old mum of mine has diabetes, Alzheimer's, vascular dementia and a stent in her heart which means she uses warfarin (which means regular check ups). She lives alone so I am her main carer. I have an eight year old. I can't get a job which fits in with her - she'll be fine for weeks then have 3 appointments in a week with a possible recheck a week later and no employer will support that in a new member of staff. DH works at the other end of the country two days a week so DS and DM's care fall to me. So I am setting up a craft business. It's not much but it gives me focus and hopefully 'pin' money and I can work it around my commitments.
Of course, whilst the writer who was giving up her life and career looking after her dad, is having a hard time she forgets to do a calculation around 'normal' aged parents. A couple who had their children at, say 28 and 30 like my cousin did are now grandparents (their son is 34) to a 4 year old and a 2 year old. Her mum had her when she was 25. So her mum is now 87 years old. So my cousin now (62) does child care duties for her grandchildren (along with her husband) and looks after her elderly mum (87). Yes, she had her career but now faces the prospect of her retirement being spent looking after her elderly mum or her grandchildren. When does she get 'me' time? When does her life start?
So you're either a younger sandwich or a middle aged sandwich. Either way the way our society is set up means you support those below you and above you at some stage in your life, often with very little help unfortunately.