I started 10 yrs ago smoking pipes, wile i was 23 and i remember i got some strange looks from people walking by, from friends, just the normal comments, "you're crazy", "pipe smoking is for older people", "that will kill u","what are you trying to show?", bla bla bla.
I stopped smoking pipes for almost 9 yrs, and restarted 1 yr ago, and although in 33 i still get strange looks from people (i look younger than 33, like 25-28). Maybe its 'cause in Argentina it's not so common to see people smoking pipes, but been in Europe last month (France, Spain, Holland, Belgium, U.K.) and in all of them i smoked, and no one cared about, they're more open minded and its more common.