Committing to something for that long based on fear of missing out or peer pressure or lots of people do it and seem happy(ier?) is terrible judgement. Perhaps it's hard to describe the joys and hardships of parenthood, but it's possible to get most of the information even if you can't necessarily feel all the feels before you commit.
> if I hadn’t had kids yet I wouldn't have known what I'd be missing out on. Yes sometimes having kids is hard. But it also enables me to experience happiness and joy in ways that I previously haven’t been able to.
What's true for you is not true for everyone. Seems like having children was the right choice for you, but there are plenty of people who are miserable because of and outright dislike or hate their children. Yet that doesn't mean having children was wrong for you or that yours make your life miserable.