Ill add with a 26" wheel, 16/38 , 1st gear is 17" much lower and it is difficult to maintain the momentum
to stay up on 2 wheels..
as an experiment I got a mountain tamer Quad, and set up a 16t in front and the 28t on the wheel [14.8"]

restarts on a hill were nearly impossible as there was such small movement
up the road , with each crank rotation,
the momentum dropped to zero
before I could get the other foot on the pedal.. and perhaps, clipped in..

3 wheels and you can gear low because you won't fall over twiddling a 10 inch gear, slowly winching up the hill

the chain feels like rubber then too..

I use the two feet gear for hills all the time now , as I live on one..