I never used to need to change clothes to sit on my sofa or whatever until I moved to London years ago. The tube is filthy! Now, it has become automatic habit to me to change into 'house' clothes when I get home - I don't live in London anymore but another large city where I'm on equally grotty public transport to get around. I really don't think this would have become habit if I was going from my home to my own car on a daily basis, instead of public transport.
Am I normal or a weirdo?