Sure, there are solutions for this. Luxury taxes, tiered use (first 4L of water per day free!), properly priced externalities (e.g. a Corvette is taxed more tha

Sure, there are solutions for this. Luxury taxes, tiered use (first 4L of water per day free!), properly priced externalities (e.g. a Corvette is taxed more than a Peugeot because there's more CO2 exhaust, cow meat is taxed more than chicken because of CH4... companies will adjust, new tech will be developed), ... but yeah, unless you straight hate the rich, then the rich will be able to do more things than the poor - that's kind of the point of being rich (and unless you ban all "undesirable" behaviour, that also means the rich will be able to do more of that than the poor). I'm mainly just against the idea that shorter wash cycles are less desirable than airplane rides.