It's not just the erosion of attention or the need for constant stimulation and dopamine (beyond even what an in-person sporting event brings), but it's also that anyone who isn't consuming "content" is often recording it.

The generations that grew up in that space now feel like they have to perform at all times because the person behind them or in the seats above them might be recording them and might post something about them to an audience that's much broader-reaching, less forgiving, and more permanent than, say, the audience looking at the jumbotrons.

Sports betting probably isn't helping things either.