NO….
In CT and MA Big Y supermarket chain removed all self checkouts 4 years ago.
I will not use a self-checkout if the store also has cashiers. I will not help the store eliminate jobs and they do not give me a discount for doing their labor.
The closest gas station to my home (s blocks) is FULL service. It is consistently the same price at self serve stations in the neighborhood. We use the full service gas.