NSF
First of all: you sound like an arrogant and pompous g*t.
Yes, there are handling differences between jets and turboprops. Command potential, however, has close to nothing to do with that but mostly with experience. I work for an outfit where people are trained properly and even a junior FO is allowed & can be trusted to do a single engine approach. How is that for a comforting thought for the SLF? You're basically saying that you don't trust your young colleague with handling the aicraft in an emergency. That's sad, I hope your company has even stricter rules than the CAA on medicals and crew food because God forbid that you ever become incapacitated....