Błędnie: These street smarts simply had no choice: they come from broken homes and they had to deal with life themselves from childhood. Poprawnie: These street-smart people simply had no choice: they come from broken homes and they had to deal with life themselves from childhood.
"Street smarts" to 'umiejętność radzenia sobie w niebezpiecznych dzielnicach miasta'; "street smart" to przymiotnik opisujący osobę posiadającą taką umiejętność.