And, kids can beget grandkids!!
Having kids just for the sake of some day having grandchildren is warped. At least in the here-and-now modern era.
One of the arguments I had with my mother was over my reaching the age of almost-40 and not marrying and having kids. She was upset and disappointed about that, not because she thought I should have a husband and children and therefore a loving family of my own but for a different reason.
She outright stated: "I intend to be a grandmother." Years earlier she was pushing this, making remarks at my cousin's wedding (wanting her to throw the bouquet so I'd catch it). The guy I was seeing back then... yikes. We ran into each other downtown on separate errands, decided to meander around together for a bit, and then ran into my mother. That was the first time they'd met, and when I introduced them, my mother got this insanely gleeful, HUGE grin on her face and said how pleased she was to meet him: "I've heard a lot about you!" If she could have arranged a minister and ring at that moment, we'd have been married on the spot if she'd had her way.
It was surreal and embarrassing. Afterward, I said, "So what do you think of my mother?" He said something polite, but in a tone that told me he was trying not to insult me, and said, "What do you REALLY think? It's okay to say." So he sighed in relief and told me what he really thought. We concluded that she was really pushing it and we'd make our own decisions, thankyouverymuch.
The argument I mentioned that happened later, when she said she intended to be a grandmother, came out of the blue. It was after my long hospital stay in 2001 when I'd had multiple diagnoses and gone through surgery and testing for various stuff and each day was me trying to cope, look after the cats (I had 3 at the time - Maggie, Lightning, and Gussy), and I'd already made my decision over 15 years previously that kids were not something I wanted.
She kept pushing. I said, "I'm not seeing anyone right now." She said, "What about _____? You get along, you've known him a long time" (true; we met in high school, in 1980 and don't think our friends in the SCA didn't do matchmaking attempts). I explained that he was living in another city now and while we were still friends, it would never be more than that.
So then she started asking if I knew any other guys. I got the impression that any guy would do - just grab someone off the street, get pregnant, and present my mother with a grandchild. Marriage first? Completely optional.
I reminded her that I was nearly 40. She said, "That's not too old". I said that given my medical issues, it most definitely was.
And then finally I just picked up Gussy (medium-grey tuxedo cat I tamed and adopted in 1993 when he turned up from nowhere in the back yard as a tiny kitten that was really not quite old enough to be away from his mother, who we never found) and held him up in front of her. I said, "Gussy considers me his mother. He is the only grandchild you will ever have."
My mother was never a cat person, and her body language made that very clear; she scared him with her tone of voice and abrupt motions. But at least she finally shut up about it. The following May she wished me Happy Mother's Day and decided to consider her stepdaughter's kid as her grandchild. Fine by me, as I never considered anyone from her second marriage to be kin to me.
Long story short (too late! /Clue movie) - nobody owes their parents grandchildren. What my mother never realized was that even if I had opted for kids, I would never have left her alone with them. She was a physically and emotionally abusive person, and while someone speculated to me that she saw a grandchild as a chance to "get it right this time," I wasn't going to provide that chance.
I do sometimes wonder if my dad would have enjoyed being a grandfather, though. I think he probably would have, and he'd have been good at it.