I don't think it's a cultural issue. I think it's deeper than that: it's about identity and self-worth.

The reason I say this is because a lot of people base who they are on what they do for a living and how well they do it. The feeling of being needed by other people is what gives a lot of people their sense of self-worth. IMO the biggest risk with a UBI program is that it will cause huge gaps in this equation as a lot of people realize they no longer have to work to feed and clothe themselves. So, when we finally come around to rolling out UBI nationally (I see it as simply inevitable), it needs to be accompanied by lots and lots of social programming that aims to decouple people's sense of self-worth from their perceived worth to society.

I envision a future where traditional introductions go from:

"My name is Bob, I'm from Cleveland, and I'm an electrician."

to:

"My name is Bob, I'm from Cleveland, and I spend my time tending to my garden and teaching the kids in the neighborhood how to grow plants."