Seating in public places and transport

Does anyone think that seating in public environments could be designed better. I was thinking that perhaps there are a few issues with some of the common trends in this area. I have been travelling a lot recently, waiting in public spaces like airports and stations and using a lot of busses and trains and so on. The thing I have been noticing is that people often do not sit optimally for the best health of the crowd, that is to say, people often sit to to isolate them selves using a certain method, i.e. not sitting next to people if possible. There are of course other factors that are seen in some of the mentioned areas, like the availability of power, the fact that groups often move together, and the fact that some of the noted environments involve distinct changes in use statistics. 

Sooo. I thought about a few of these things and though a way to make busses or train a little nicer would be to make less wall oriented seating and more floating seating that would still let people walk around and would let people either be close to or less close to people around them depending on their acquaintance with each other and without taking up too much extra space. 

Also, I thought a little bit about steps to socially engineer people sitting in airport gates and other such places to make sure they would use the available chairs optimally, or at least in the sense that clusters and isolated individuals could exit without wasting seats or making either group less happy. 

I will try to put some sketchup models together to show what I am thinking about. Any other ideas?

Permanent Sleeping Bag

An example of a bed involving a balance between the blanket and the mattress and few distractions or complications. 

The other day I was thinking about this issue in life which is that I really like beds that are just 2 parts. A mattress or futon and a heavy blanket. This is how I like to sleep 100% of the time and it is a form factor that I think looks quite neat of done in the right way. 

An example of a bed with rollup blanket. Click for a larger image.

So I was sitting considering life and blankets when it dawned on me that one of the reasons I really like this schema is because it is so easy to clean and aesthetically balanced, however one problem with it is that it is hard for tall people like me to not end up with cold feet. So I suddenly realised the perfect (not really) solution. Have a single roll up blanket at the end of the bed. This way my feet would be locked in and not get cold (this is really a big problem for people like me) and it would be sort of a self cleaning bed. A friend of mine also brought up that it could be used as a padded seat when rolled up but I am not sure if that something I am eager to take advantage of. I was also considering making it with the roll under the end of the bed but Zen told me no.