Pretty much. If he went out with normal looking hair, no makeup or cosmetic contact lenses, no one would even realize or recognize him as Manson, the anti-Christ boogeyman who was in every closet, under every bed, and lurking in every shadow always on the prowl to corrupt your kids. It's kind of frustrating that asides from the very, very cliche rock-star things like drug abuse, every time I've read something about him he's a very bland, tame, mellow guy. His person and alter ego are further apart than those like Clark Kent/Superman, Peter Parker/Spiderman, Batman/Bruce Wayne, and so on. I'd probably never in a million years believe that quiet, timid, soft-spoken man was the devil incarnate himself when I was a kid/teen.
Young are those who were "of age" for Harry Potter as kids. Old, that's decades out from where my mom is. We had stone wheels and strings and clubs for technology growing up, but Pat Robertson is the new minimum to be considered old, and the year that defines what being old is ticks up every year he doesn't die. 