Bitcoin's use will never be for that. The current system used for day to day shopping works perfectly. The banks and the payment processors that are established are all giving efficiency and convenience to their users so Bitcoin has no place in it. Where Bitcoin thrives and will thrive more is in the black market and online dark markets simply because the banks do not serve that space.
So basically you think that bitcoin is only good if you are a gambler, tax evader or black market user?
And if you actually want to do something constructive and increase utility value for customers you shouldn't support it?
You know that this version of protocol is not the final version and in the future we can have huge changes to how bitcoin network will work, right?