I know what you mean . A lot of people on here are only starting their families in their mid to late 30s. I was late 20s. And the difference I feel now at late 30s compared to how I felt then is remarkable. I feel wretched some days and couldn't imagine being pregnant or having a toddler. Let alone at 60.
He could live until he's 100. But he's overweight and likes his wine , it's unlikely. He could be in good health at 80, or he could be riddled with dementia or other chronic health conditions. Not a great card to deal a tiny baby.
But, in richer circles I think it matters less. They have lots of people and resources and privileges around them. It won't replace a parent, but it will mean that in the event of Boris's death , the child won't suffer hardship in all the same ways a "normal " family night.
I do like Boris, and always have. I think him and Carrie genuinely love each other and I think he loves fatherhood. In my opinion, he is the prime minister I felt most happy with.