Yes, although we don't care if guests wear them inside so long as they aren't muddy or gross in any way.
Is watching movies together normal for your family? This can include either watching them at home or going to see them in theatres.
I think I get more lonely in the sense that nobody knows how I feel, rather than lonely in the physical sense (although that can happen too at times). I then get reminded eventually that someone out there has gone through similar things as me before.
If I'm doing good, I think about story ideas or what sort of activity I would like to do next. If I'm feeling bad, I think about some recent failure of mine and harp on it.