UBI would increase people's mobility, allowing them to move to cheaper areas where employment opportunities are not quite as strong.
We need to remember that we're talking about humans, and not some particle which can simply find a shorter path to wealth.
Edit: To be clear I'm not necessarily opposed to UBI, but I find this 'people are but cogs in the machine' view of economics especially appalling.
I resent your implication that I think people are just cogs in a economic machine.
People move location all the time for a variety of reasons. Sometimes economic, sometimes for lifestyle, sometimes for the weather.
I suggested UBI would give people more options, more choice, more power in their lives and you suggest I hold an appalling view and think people are nothing more than wealth seeking particles? Thanks very much.