This is just a cultural difference, and depends on what kind of family a person grew up in. It’s not intentional, and not a sign of disrespect or incompetence.

If you want to get the most out of those conversations, you need to meet the other person halfway: be more assertive about your time to speak, while also letting them know that they’re trampling you and need to back off a bit. If you don’t tell them they’ll just think you’re a shy person with nothing to say.

Other cultural differences cause similar problems. If someone I don’t know is mad at me and just silently stews with a vaguely grumpy neutral expression on their face, I’m not going to have any idea they’re mad, because in my culture we just come out and tell people what we’re thinking. By contrast I know people who are deeply humiliated by (what seems to me like) light criticism, because it is huge faux pas and therefore never happened in their culture. Similarly, I know people who simply don’t understand the concept of teasing, at all, and others who are almost cruelly biting in their teasing: when those two collide it’s not pretty.

Or if I’m listening while someone tells one thing to one person, and something contradictory to someone else, I will consider them to be dishonest/untrustworthy and start discounting everything they say. But in some cultures, it’s normal and expected to say what you think the listener wants to hear, and listeners just have to learn to read between the lines and interpret subtle distinctions in presentation style.

Etc.