Thanks a lot! I completely agree with you. You're right there's no real reason not to be able to run, and I hadn't thought about that! Hahahaha. Still, I like that there's the option to run, as without it, someone might have requested that feature anyway.
Unfortunately, I didn’t have enough time to balance the difficulty of the game. For now, the only lose condition is running out of time. You can still win even if all the tourists are "lost," but this only impacts your final score!
Anyway, thanks again for your kind review!