When The Beatles landed in the U.S. for the band’s first tour, they were nearly as young and innocent as they seemed. They just topped the Billboard charts with “I Want to Hold Your Hand” and had “She Loves You” (yeah, yeah, yeah) coming soon.
Meanwhile, their passports wouldn’t get one Beatle into a New York bar these days. Lead guitarist George Harrison was still 20 years old on February 7, 1964. Ringo Starr, the elder statesman of the group, wouldn’t turn 24 until late in the summer.
Paul McCartney and John Lennon landed in the middle of their bandmates on the age scale. Even though they’d go from singing “Love Me Do” to being “so lonely” they “wanna die” by the time they broke up, not many years had passed.
In fact, none of The Beatles had reached the age of 30 when the band split up in spring 1970.
Source: cheatsheet.com