The second hint refers to
other songs about cities, Barcelona (Freddie Mercury) and Leningrad (Billy Joel), and presumably Route 66.
All the clues and the first hint are
Lyrics from the song Streets of London
there is a former marketplace, where elderly are reading outdated information.
Have you seen the old man in the closed down market ..... Yesterdays paper, telling yesterdays news
there is a share of homeless citizens, wandering about.
Have you seen the old dear who walks the streets of London / Dirt in her hair and her clothes in rags
there is a nice cafe which serves tea, but consumers are quite quiet.
And in the all night cafe at a quarter past eleven / Same old man sitting there on his own / Looking at the world over the rim of his teacup / And each tea lasts an hour and he wanders home alone
there is a Seaman‘s mission.
Have you seen the old man outside the seaman's mission (that was the easiest bit to Google)
Hint 1: The weather is pretty bad in winter, for me the sun don‘t shine.
So how can you tell me that you're lonely / And say for you that the sun don't shine