I recently quit carrying after 8 years. I never needed it, and I realized that I started when I was a cocky 21year old that diddnt know shit... I may start again if I get back into the courier business.
It did get me out of several tickets though, handed my permit over with my DL and we just ended up talking about curio/relic firearms before getting cut loose. I was usually carrying something antique like a Browning or Wather. sometimes my makarov, The Soviet Bloc stuff always started conversations.