Taxi accessibility varies wildly depending on where you are.
I lived in a small city (700k-ish people) for a decade and almost never saw a taxi on the streets. One morning, I locked my keys in the house and had to call a cab to take me to work. It took 30 minutes for a taxi to arrive. I lived literally one block away from the city’s taxi depot.
A couple of years later, Uber hit the scene. With their service, I never waited more than 8 minutes for a ride anywhere in the city.
If I’m in transit on airplanes and in airports for 8 hours and I wear a mask for 7 of those hours, the one hour (or probably less) that I take off my mask to eat a meal doesn’t completely negate the good that wearing a mask does for the rest of the time. I’m still reducing my risk (or the risk I pose to others around me) for 88% of my travel time.