I lived in Spain for six years. The streets were always littered with trash. I notice in these photos - NO litter on the sidewalks or the streets.
Obviously it was totally unacceptable to trash the street and one might add there would of been a small army of street sweepers keeping London as tidy as possible. Also, this would of been in the more fashionable parts of London out in Westminster and the West End. I would imagine the East End would of been much dirtier. Although if the ladies crossed they have to navigate the horse dung.
Were eating habits more refined?