That age-old comment 'I came here to say this', but yeah, exactly.
Like that Limmy sketch, I got to aged 20+ before I realized bottle water isn't literally just because you can't get to a tap, it's actively nicer than a lot of the country.
Funny one we found is that the West end water is much better than Milngavie/Bearsden, despite being far closer to a reservoir.