+1 - I don't carry a lock when I ride my Tikit. . Once or twice it has helped sway a business owner into letting me bring the bike in as I had no way to lock it up. I rarely have a stop I couldn't skip if necessary and I have never been denied entry with my Bike Friday.

I often fold the Tikit in front of staff at the business which usually starts a conversation and they want to get a closer look at it so I roll it inside and let them check it out while I take care of my business.