In the UK, there's a yearly fund raising drive called Byte Night https://www.bytenight.org.uk/ https://www.bytenight.org.uk/ that is targeted primarily at the t

In the UK, there's a yearly fund raising drive called Byte Night https://www.bytenight.org.uk/ https://www.bytenight.org.uk/ that is targeted primarily at the tech industry. People help raise funds by sleeping rough for a night in a park at various cities. The money goes to Action for Children, who aim to tackle the root causes of homelessness by trying to help prevent vulnerable young people from becoming homeless in the first place. I did my first one this year, and will look at doing it again next year. While the night is nothing compared to what people really face (we at least can have a sleeping bag, get a decent meal beforehand, and you're relatively safe during the night), it's a great cause, and really changes your perspective on how people become homeless, and what they face.