Do you think a lot of people regret having children?

You look on the Regretful Parents subreddit and many people express this.

(I saw one video (and I won't say who was speaking) that the reasons the kids were being difficult was because of the parents creating a hostile environment.)

I have never met anyone who has said they regretted having their children. This could be because I'm younger. However, I asked my dad, who is older, and he said he's never heard anyone say that either.

What do you think? What have your observations of parents speaking on this regret?