If you're not interested, don't have them. I had one parent that enjoyed parenting and one that did not, and having a parent that doesn't want or like kids is so obvious to the kid. It definitely causes issues.
I have found that people don't know what to do with people who don't follow 'the life path', whatever path that is. Like here, I'm an oddball for not going all in on my career or caring that much. In general life, being an unmarried woman with no kids in my late 30s means people don't know where to 'put' you. A lot of parents in particular tend to think of childless people as children/adolescents, which is rather annoying.