In about year 10 like 50% of my guests are tired and can't find the exit. I don't know what happens. I tried to pick about about 10 and put them by the exit and all tey say is i can't find the exit.
Try drowning them. build a path over a lake and put no entry sighns no they can't leave the path. then delete the path and they die and then they don't need to find the exit
I make sure to have plenty of benches installed for my guests to rest.Seems to help the tiredness factor.I also used to get TONS of lost guests so I always install lots of info kiosks with free maps...very little $$$ loss and guests never get lost now.