When Bitcoin was first created, what people use to notice what Bitcoin is all about is through social media awareness,
But some of them only knows bitcoin as a tool for criminals hiding their shits that's what most news media trying it to portray. Only these new generation understand it the most.
And yeah, since most people already have facebook, twitter or any social media accounts no matter the age is, seeing posts related to bitcoin/cryptocurrency is easier, it only depends on how they will react into it and what info is feed to them.