To grippee sock or not to grippee sock?

Thanks Ellen, I didn’t think about sock difficulty, that is a really good point. The no shoes is encouraged (by a mat being by the door with a little pointer sign that says “Shoes”), not required. Very typical in NY apartments when I visit friends/family, and I think not a bad idea for a small space with no entryway or foyer, which I would like to import here.
I also thought the slippers would “soften” (ha a little punny there) the no shoes noodge.
I too find it irritating to go to a house for a dinner party or something and the host or hostess insists on me removing my shoes because of their white carpet or their rug rat kid, or whatever.