I do not see crypto  being used for small expenses like buying food or stationery in my country. Most of the sellers here are poor and uneducated and they do not won resources to accept bitcoin payment. Recently the government here tries to promote digital payments but that also failed miserably. This type of change cannot happen in one day. And the government first needs to build the required infrastructure for this. For instance, poor people should be given access to high speed internet and smartphones so that they can learn about crypto first.