How much do you disregard the ones that need your help ?

I’m a hundred percent sure that none helps all around him/her.
A lot of the time is not easy to take a look at a bum and give him money when you know all he’ll do is buy booze and smokes.
Though a lot of the one around you need our help and they can’t help themselves .. what do you do with them ? Do you help or disregard them ?
And I’m not talking only about friends and family or neigbhours. What about people you don’t know or only meet once. Do you help if you can or just pass by ?