Nope, but I've been in your son's shoes. And still am, after 43 yrs of marriage.
Different reasons for being DINKs, perhaps:
- This is a very expensive area to live in. But the schools vary tremendously by city. Some are good, most are poor. This means you need to pay for private school unless you want your kids to be semi-illiterate. I saw the difference 35 yrs ago between my neighbor's son and my niece when they were the same age, about 9. The boy [public school, rated "very good"] could barely spell his own name, printed all his writing, and randomly scattered capital letters in his sentences. My niece [private school] wrote a book of poetry which her father self-published, which I still have - beautiful, elegant, thoughtful poems. All were correctly spelled and the meter was flawlessly executed. Quite a contrast! Yet I don't think she was any brighter than he was, to be honest.
- We simply didn't make enough $$$ for afford a large enough apt or home, and pay for private school(s). Our career choices were to have a good work/life balance, not to work long hours to afford basic necessities (and let's face it, with kids there's a LOT MORE necessities, even if you're not being extravagant).
- I have never cared for babies at all. I like kids when they're around 7 or 8, but even then most of them I don't warm up to. One of the very few I liked as a toddler was my brother who is 14 yrs younger. We enjoyed a great relationship and still do. But overall, I have no desire for children and my DH was fine with my decision, which I established up-front at the very beginning of our relationship.
- We could not have taken early retirement if we'd had children. We now enjoy a very good lifestyle with a higher income than we did when working, in addition to less overhead (no mortgage, etc.) and a lower tax level. We have comprehensive retiree medical insurance and our own LTCi policies, so have no fears for our old age, unlike every other member of my family. My nieces/nephews are very concerned about their respective parents' old age, and rightfully so. They are all doing well financially, but in no scenario do they have the kind of discretionary income that could support even one parent in skilled care for more than a year, if even that.