Why are they fitting a water meter? Bad times ahead, I think, especially if there's a burst between the meter and house. 'Change your mind' is the best advice I can give, even if you live alone. Ever more so if you don't.
Our water costs went down around a third when we had a water meter fitted last year. Recently we found our water was coming through brown one morning. We were advised to let a cold tap run for at least 40 minutes. A credit was added to our account to pay for it.