Possibly insurance requirements?
Even the regulatory agencies around the world usually have "baby captain" minimums.
When I am new in an airplane it takes a few hundred hours until I can start to feel that connection of the small elevator change all the way up to my fingertips. The awareness of a certain noise or lack of noise that tells me something is wrong doesn't come after the type ride. It takes some time to revisit this feeling after I have not flow even for a few months.
The time requirements of currency can also involve a reduction in training necessary. Many countries can have a short course if you are current.
Just some thoughts.