Craft beer about status and distinction. If one needs training to appreciate something, it's about cultural capital. It's like experiencing "serious" art for the first time. You likely needed someone, like an art teacher or curator, to explain to you why it is important and worthy of attention.
Beer historically has been a middle- or even low-brow beverage; it's of the people. Wine in the modern era became increasingly hoity; it is in most cases high-brow, a paradigm in which one can demonstrate rarefied and ultimately arbitrary knowledge to distinguish him- or herself from hoi polloi. Beer now seems to be making a play for the high-brow.