I think a lot of people are overthinking about having buttons to open doors, sure it's not nice to have to be blasted with cold air in the winter or hot air in the summer time but we should be thinking about people who may not be able to use it because of a disability. For example, how is a blind person supposed to know where it is to be able to board or get off, are they just supposed to ask someone to help them get off? What about someone who is in a wheelchair and can't reach it from their chair safely? Many of the things I listed don't seem to be thought of in Europe where it seems to be ok top have to have someone book in advance to have a ramp available for them at a station. Many of the accommodations we make for disabled people so that they can be as independent as possible seem to be ignored in other places outside of Canada and the US.