Why do golfers wear only one glove? what is it for, is it just for extra grip?

after buying a set of ping irons, a big bertha monster driver, long and straight down the fairway , a non-slicing tee, a distance meter, shoes with new cleats, sporty knee-length pants, a leather bag to carry the clubs in, numerous practice aids, sungles, sunscreen, beer, cooler, snacks, ball marker, rainsuit, umbrella, paying the greens fees, tipping the caddy, i just ran out money and couldn't afford the pair of gloves