

Every human body is different. Some people need a shower twice a day. Some people have natural perfume.
If you are concerned about it being a waste of water, then you can campaign to make society treat it as a valuable resource and not a “free swimming pool for everybody” type deal. Cause for a lot of those cases you point out, people are just using it like it’s priced dirt low.
The whole point is that everything is in an official ledger, that can be argued over in front of a judge.
Best you can do is say you don’t consent for your data to be sold. Find a smaller bank or a credit union where they have to give a shit about their customers.