[xaybey]

Actually, I think those would be acceptable answers. As a young person who works with older coworkers, I'm perfectly willing to talk to you about your kids or buying groceries. I just want to relate to you in a conversation that isn't about work.

[spacemanmatt]

It's fine to relate, and I'm pretty sure we all need that. That's why I list hobbies/interests, as a point of departure from strictly relevant professional topics in a résumé. But it's also against most HR policies to ask about family-anything because few can do it without crossing some liability boundaries. This is a good conversation to have.