So what is it like for those people living their lives in the elements as rough sleepers? We know that attacks against them have been on the rise.
So we fitted our correspondent Matt O'Donoghue with a hidden camera to spend time in a doorway in Liverpool.
The result may be surprising, he was treated with care and compassion.
Politicians keep talking about an end to rough sleeping, ending homelessness is an even bigger challenge.
The life expectancy of someone living on the streets is 30 years lower than people with a home in the UK.
A homeless charity has warned that young people leaving care are some of the most vulnerable in society.