I drink tap water and resent paying huge sums for bottled water. I sang in a concert at the Albert Hall (a "from scratch" effort involving a long rehearsal, followed by a gap, and an evening performance)a few years ago and my pal Enid, who was in the same music group as me at college in the early 1970s, came along as well. I took my Sigg bottle (birthday present form Charlotte OTP) along with me, which I replenished as necessary, whereas Enid was forced to buy bottled water from machines at £2 a bottle.
At lunch, she and I adjourned to one of the good-but-cheap Chinese restaurants in Kensington, and they filled my bottle again for me. She must have shelled out about £6 throughout the day.
I would pass a law that all towns and villages proved free tap water and free public lavatories. Some countries are very good at this, but we are getting worse.