This might have been asked (sorry I searched threads before posting).  

Not wanting to start a big debate about geofencing. I noticed a lot of the smaller commercial airports are not in the geofence map.  I confirmed that they are indeed not active by attempting to fly (low) at a friends house approx 1 mile from commercial airport in Allen, TX. The P3A flew just fine.

Im on update 1.6 and current version of the go app.  Just curious why DJI doesnt include all airports? Looks like its only currently some airports, including smaller airports near my house than the larger one I flew near in Allen. Anyone know why?

I'm sure due to the volume, their going to miss a few smaller airports...heck, some smaller airports with only grass for a landing strips probably isn't even on the maps. People have been flying RC aircraft decades without fancy computers and GPS and without issues. Just observe the model aircraft rules and use common sense and you will be fine.