Rock and roll influenced daily life, fashion, attitudes and language in a way few other social developments have equalled. As the original generations of rock and roll fans matured, the music became an accepted and deeply interwoven thread in popular culture. Beginning in the early 1950s, rock songs and acts began to be used in a few television commercials; within a decade this practice became widespread, and rock music also featured in film and television program soundtracks.
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Rock and Roll originated from Elvis Presley's love of R and B. Then many other kids grew up listening to him and wanted to teach the world about rock even more like The Stones. Later, other bands like KISS added on to The Rolling Stones which is how we got these amazing bands like Aerosmith, Motley Crue, Def Leppard, etc.
Yes , because if they did not it would be easier for people to steal and or touch, damage the art .if there are less people it is easier for the staff to manage
