Absolutely. The people not like me might have a very interesting perspective on my situation. They even might have been through a similar situation, but handle it very differently than I typically do. Or, the situation might be that they aren’t similar to me, but have been on the other side of a situation like mine.
Moreover, if you want your life to move in a particular direction, you need to talk to and observe those who live that life. They know best how to get there, not the people like you who haven’t achieved it.
I have a girlfriend who just last week was “talking” about her sister in a critical way, and I said after hearing the story, “I am your sister in that story.” Meaning, I would probably do the same as her sister. I think it would help my friend with her sister if she tried to understand my thought process, and not be so judgmental or annoyed with her sister. She doesn’t need to completely agree or change who she is herself, but she could reframe the situation, and not let it wind her up so much.
As far as not having kids, well, I remember being a kid, so I still have that perspective, and I think it’s worth while. I also observe my friends with kids, so I think that’s worth while. However, I do know people without kids who are fairly unreasonable about kids.
Recently, there was a Q about having adult kids live with their parents, and one jelly who has a young child, answered the Q regarding friends of hers in that situation. For the life of me I don’t see why that’s such a big problem, but the OP didn’t want to hear any answers from anyone not in exactly that situation.
At the same time, sometimes no one can empathasize as well as the person who thinks like you and has been through the same situations, or who is in it at the same time. Especially, if they got through and have a good outcome, or are overall happy, they I think are great to listen to. I’d just warn that if you’re miserable in life, that sort of empathy can be counterproductive.