From my experience with TERA and Wildstar, people often only want to duel someone they don't know only once they have examined them and know they grossly outgear them -- aka, someone with the highest tier PvP gear vs. a newbie PvP geared player or, the worst and ones that seem to get picked on by these types the most, a PvE geared player. Of course, this isn't true dueling since it isn't an even and fair pair up. Now, if SE implements a dueling system where gear is equalized, then I'd be all for it if they put in place a 'refuse all duel' option to click on. But, of course, if it is anything like most MMOs....good luck beating a healer before falling asleep (looking at you priests in TERA and medics in Wildstar..)