I don't remember exactly when I really started enjoying wine, maybe during one of my college year that I spent in Bordeaux. I didn't know much about wine at that time and I remember buying wines based on the label design rather than on the name of the château.
I realized how ignorant I was when I got invited to a wine tasting weekend at a friend's family house near Chablis. Each guest was asked to bring a wine and hide its identity by pouring it into a different bottle. I had no clue about the differences between a Bordeaux and a Bourgogne or any other appellation for that matter, and I could not guess any of these wines.
I don't know whether I could, even today, blindly identify a wine from Bordeaux from a wine from Burgundy, but for sure, I am still amazed at how much there is to know about wine.