Interesting point about pre-flight practising. With the advent of PC simulators, I find that Microsoft yoof can cope quite well with flying a procedure he's practised lots of time on his PC.
But when it comes to flying a diverse radar vectored ILS under ATC instructions, they have little situational awareness and have difficulty flying, talking to ATC and following instructions at the same time. As someone brought up on radar to GCA approaches where such things were bread and butter, I found this quite surprising - so now my normal requirement on IMC Rating revalidations (if only 1 approach is needed) is a radar vectored ILS from wherever we happen to have ended up rather than the usual NDB/DME to ILS from the overhead.