What support was given to the refugees who came to the US before 1930?

All of my grandparents came to the US from Russia between 1900 and 1910. My father was born not long after and, sadly, both of his parents died a few years later. He was taken in by an “uncle”.
He used to say he was working as long as he could remember: shining shoes, selling candy, painting,... anything.
All of my grandparents and parents are long gone so I cannot ask them. (Oh, why didn’t I ask when I had the chance?!)
It seems immigrants had to hit the ground running to survive.
What support network did they have? Did the government supply housing, food, language assistance, cash payments, etc.?
How did they manage?

Please spend a few minutes with your grandparents and ask them to tell their story.