Not OP, but I'd interpret it in a broader sense, that is, not focusing on specific and daily activities, but rather on general, social trends. Anthropologically, humans (but also animals) tend to mimic others so that they can integrate into a social group, and thus have better chances at surviving. Even if people are unaware of it, they're constantly influenced, directly or indirectly, in the modern world, whether it be through ads, fashion, music trends, hobbies... Generally, people try to conform to other people's tastes lest they'll be rejected and isolated. I mean, the prime example of that is high school, where you have the popular groups on the one side, the members of which all like the same type of stuff, and who reject those they call the "weirdos" because they're not into the same things.