not easy unless you live in a region which produces wine! And a few years of exposure, you ll start drinking like a local! It certainly is an acquired taste and needs some time for people to appreciate, esp. because, the type of grape, the colour, the smell, the texture etc.
When it's more than about 15 years old, Champagne turns a dark, toffee-ish colour, takes on a honeyed flavour and loses its sparkle. It's an acquired taste, which the French mischievously call le goût Anglais.