Why, Robert...I must say...
As a life-long "hippie"(©,®,™)I am both shocked and offended at your lack of sensitivity! (not really ;-)
I must say, I've followed this thread with quite a lot of amusement.
I haven't cut or trimmed my hair since the late 1980s...the exact date escapes me.
I wear my hair in a neat braid that reaches to about 4 inches above my knee at this point...it's always clean, and I'm always "well-groomed and presentable" for public consumption...I just decided long ago that I would never cut my hair.
The whole "shaved head" and "crew cut" or "Dustin-Hoffman-in-Papillon-look" thing just puzzles me. When people who can actually GROW hair started shaving their heads on purpose and by choice I was just confused and incredulous. I still don't understand. Convenient? I guess so, but I guess I'm a product of my time, and I will always refuse to buckle to others' expectations of what I'm "supposed" to look like.