Ceasre Firstly you are welcome; and secondly, I DO know precisely where you are coming from.
I too have a DC who is gay, and that is SO not a biggie to me in any way at ALL, BUT (& I genuinely - as a Mamma - simply CANNOT get my head round this) has friends whose families HAVE disowned them.
Literally, have thrown them out of the family home on the very day they came out.
My rage at those 'parents' [NB: Chazzers - do please note the deliberate and obvious use of inverted commas there; ditto vis how they DO apply 'diminishment-wise' to those 'parents', but how they do NOT apply - again, 'diminishment-wise' - in the way you overtly employed them
] is immense as I genuinely have NO comprehension of how a parent could either act that way, OR be prepared to inflict the consequnces of that 'act' on their child.
IE: as another poster said/alluded to - and with NO apologies for bluntness here - to be urinated on; to have the shit kicked out of; to only THEN (IE AFTER being turfed out) run the risk of descending into addiction precisely AS life on the streets is so horrific.
My DC has a friend who, having been kicked out like that, slept in a skip for months. A fucking SKIP.
Likewise I know of many Ex-Service Personnel who, having been sent to war in our name (whether we supported said war or not) are then left to fend for themselves in the excoriating tsunami that is PTSD.
So Ceasre - I for one am immensly GLAD that you HAVE 'seen' this human being; ditto that you want to help him in whatever way you can. THAT is humanity. Asserting sh*te such as 'Some people choose to live this way' is the polar opposite (other than those who choose to NOT go to shelters due to the experiences they may have had there - but even then; THAT is clearly not 'of choice' or a desire to sleep rough).
I have 3 DC. One is at Uni studying the vocational type subject is just passionate about; another has just started at Oxbridge pursuing their ferociously academic choice of subject and then career; and the third? Well they just came home from school and said: "D'you know what Mum? I REALLY want to be sleeping rough when I am older" 