Except a gas station can currently serve X people per hour with fuel tanks but Y per hour with electric charging. Under the assumption that Y is not only less

Except a gas station can currently serve X people per hour with fuel tanks but Y per hour with electric charging. Under the assumption that Y is not only less than X but substantially less than X, they'd need to find a lot of methods to extract money form those customers, which ends up with their own risks and costs.