someone to fly a PC12 or pa42 as they're both turboprops, and the second also a twin. But a C172 pilot could reasonably read their way into a PA28 or T67. Not the best way to do it - but sometimes the only way.
I have a question for you, can someone who flew only a 172 'read their way' into flying a PA46, it is a piston SEL, no turboprop. Would you advocate such behavior? Would you encourage passengers to fly with such a pilot? PA46 could also have much more complex avionics but I guess a pilot could simply read the relevant 300 pages of docs and go flying...