Advertising has been around for more than 2000 years, maybe there is actually some want for it in enough people. To be notified about things without actively looking is not an insane thing to want.
But to your point I guess in the near future with AR.
On a more whimsical level brick-n-mortars could have signage on the non-visible light spectrum and opting in could be using some wearable to enable visibility.
edit clarity