Originally Posted by
deniah
I don't think backpacks for flying were a thing, until late 90s/00s. Backpacks were simple schoolbags with few pockets. When laptops became truly portable, in came the tech backpacks with different compartments for accessories and they ballooned into travel bags.
Checked luggage weren't really restricted. People wouldn't have needed to sneak by with the travel backpacks.
I can guarantee you college students were traveling with backpacks stuffed full of all sorts of things by 1980.