My neighbor used to be a hardcore Bud lite drinker, but he loves my Berliner Weisse. Sometimes, people surprise you.
Fruited sours are how I'm reeling in my wife. First Lindeman's, then a locally brewed Peach Berliner, now she digs my cherry Flanders.
At our wedding, I received a LOT of compliments from her family on my beer (a rich, chewy, coffee, chocolately, brown ale). I think the combination of familiar non-beer aromas/flavors, low bitterness, and moderate gravity was such a departure from what they know as beer that it allowed them to put their guard down and just enjoy the drink.
The celebration probably didn't hurt. Sometimes its all about reaching the right person at the right time.