Dating, yes. Marrying, no.
When I was single, I dated a young lady who had two young sons, and though we got along well, I didn’t like her kids at all. They were wary of me and I thought they were little brats. However, it didn’t really get in the way of me dating their mother and liking it.
The disadvantage of dating someone with children is that you have to try to get along with them, and have them get along with you. That takes additional energy and time. There’s more emotional baggage involved, and more sacrifice.
The advantage is that it kind of prepares you for parenthood, in a small way, because her children become sort of your children for a little while. But if you don’t like them, like I didn’t like those boys, then it has little advantage.
I would never marry a woman with children, unless the children were really good kids. I mean really good kids.