I guess they can at least guide people to stay on the path, but some solar lights are not very bright. Mind you, we have some on the outside of our house that are motion activated and give useful light.
You get it colder than us and we have not had any snow this winter (I think). Just a little frosty this morning.
Yeah, that is a good point about the lights. Plus they don't always hold up very well through the night. They might be really bright at first, but then they just kind of fall off as the time passes.