In Mexico you get a 110V (or 120V?) service with only 30 amps total for the whole house.
In the USA a lot of us rent our homes/apartments. And even if we do have a way of installing a charger it is usually harder to get much more than 240V at 30 or 40 amps (well actually 80% of those amps or 24 or 32 amps respectively). The more you go from there the more likely you need your house service upgraded (total amperage at pole to home) although some homes may need an upgrade even with a 20 amp (16amp) increase.
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