Yellow ftw.
Wifey and I go on Pokedates at night where we drive around and attack and control as many gyms as possible to get those coins.
We always run into people, even in the middle of the night. Some of the spots turn back blue or red within minutes, even in the middle of nowhere, in the middle of the night.
I drive for Lyft ridesharing as a part-time income gig and people are asking me to slow down at pokestops and are trying to catch pokemon while I'm driving them around now. It is so big lol.
I never liked or knew anything about pokemon before this except that my kids liked it.