I agree. I liked the combined version for six months, then realized that losing one but not the other meant I could still get home. I've only lost my wallet once in the last ten years, but when it happened, I was able to call the restaurant and get a Lift back there to collect it.

In the US, we have an aging population that is more aware of what we may face as we have more extra years of failing health. I would predict that offering the option after a certain age should become more socially acceptable. My husband and I would like to eventually go out together, but right now we'd have to go to Switzerland to do so. I wish I'd see more people discussing this, but I haven't.