My husband says that his older sister's teenage pop magazines were full of cover features and articles on Robin/Burt Ward that she shared with him, so Mr. Ward was quite the teen idol.
Purity and virtue-BATMAN!
Cowards run away!
Batman saves the day!
Also, Boy Wonder Robin.
Batman and Robin-caped crusaders at night!
BIFF! POW! BAM! BATMAN!
Considering I was born in '65, I can't claim to have been there in "real time," but I have seen "teen idol" magazines from the era and I know he featured on some covers and inside articles. That said, it's never been clear to me how many of these "idols" (in ANY era) got that exposure due to a genuine interest among young readers and how much is "planted" or fed to the magazines via PR departments eager to promote their shows and records. For instance, I've always suspected that guys like Pat Boone and Cliff Richard figured on so many magazine covers because of a PR push from the top down, as opposed to legions of girls writing in demanding more photos. Which is not to say they weren't good-looking guys, but they hardly seem the type to get pulses racing.
My gut feeling is that the lion's share of "school girl crush" attention was going to rock stars in 1966, especially the British Invasion types but also the Monkees. Burt was undeniably a great-looking kid, but "Batman" skewed young and his on-screen image was squeaky-clean in a way that was purposely anachronistic even for 1966 (that was part of the gag); I'd guess his girl fans were more in the pre-teen category. Older girls would likely have been more interested in "bad boys" like Mick Jagger or at the very least guys with longer hair and wilder wardrobes. By 1969, the TV Dick Grayson would have stuck out awkwardly in a pack of teens like Wally Cleaver at Woodstock.
That said, I'd have been very pleased to see Burt or anyone like him considered a "teen idol" when I was growing up, instead of the androgynous, pouty-lipped pretty boys on the covers of "Tiger Beat" at the time. All the girls I knew loved Leif Garrett, Shaun Cassidy, Bobby Goldsboro and so on. And they never liked it when I said those guys all looked like girls. Just that "Young Republican" haircut alone would have made me a Burt supporter.
"LOOK! IT'S ROBIN THE BOY WONDER!" (WAIL!)
(I don't know how to spell a scream, so I'll just scream a spell)
I think Adam was in the same Roger Moore/Sean Connery department: "I'm elegantly handsome as hell", wherever Burt was in the "Good and Pretty American Boy" corner. Both had a great appearance.
Weird seeing Bruce Lee with a moustache , he looked 10 yrs older with one.