Here is a corrected version of the original post, which was not intended to be mainly about music and films -
I invented the phrase 'street-dweller' about an hour ago whilst replying on another thread.
Roger Miller's 'King of the Road', and Ralph McTell's 'Streets of London' and another BeatNik song from 1963-4 which I cannot remember any more, are my life's theme songs.
All my life, I have regarded myself as being only one step away from a life on the road, and even now at my advanced age of 65 the idea is not without its attractions.
Street-dwellers frequently display unconventional behaviour - I wonder how many of them would qualify for a diagnosis of ASD.