Most people would think that's pretty normal
I've been drinking water all my life, all my family lives on the stuff, sparkling preferred. I have a machine to bubble up my tap water and I drink a lot of it.
Pub's here are not really prepared for people like me and generally I get asked if I'd like something with some taste.. I don't, I am happy as it is.
If they do have some it's a tiny bottle at a horrendous price..
Most people do not find it normal at all, they would rather order diet coke and stuff like that not realising that that is an appetizer and makes you eat more.. 😉
Water rules! haha
Good luck with your plans!!!