For folks with any mobility impairments I highly recommend requesting wheelchair service at the airport. Don't suffer and push through the slog of getting through security and the gate if you don't have to.
I don't know about most airlines but Alaska's wheelchair service is free and super super helpful.
@fluffy 110%
this is free and available at most US passenger airports, fwiw, and probably various other countries too
bonus: the worker knows exactly where to go and how to get there, which saves a lot of mental work in unfamiliar airports