If that's the case, then why are they making it more convenient to pay? Where I am (in Europe) all the major petrol stations have mobile apps you can pay with.

If that's the case, then why are they making it more convenient to pay? Where I am (in Europe) all the major petrol stations have mobile apps you can pay with. One even launched a system where you can register your license plate, and whatever you fill up is automatically charged to your account. If foot traffic is all that makes money, it seems they should want you to go into the store, not pay from your phone.