I'm guessing that Merlin knew his son wasn't interested in the hotel so he set up the system to find someone who could be the head of the business so his son could be a part of the everything from behind but also have enough freedom to do what he wanted.
I'm guessing that Merlin knew his son wasn't interested in the hotel so he set up the system to find someone who could be the head of the business so his son could be a part of the everything from behind but also have enough freedom to do what he wanted.