Non instrumented flight or at least circuit practice is part of the UK
syllabus. I agree it is a very necessary skill to have.

Want some fun? Remove the front canopy string and ask the student to
fly without it! I lost the string on takeoff on my Nimbus 3 once, boy
did I ever have to work hard for the next couple of hours. At the best
of time that ship wanted to fly sideways, without the string it was
nigh-on impossible to be confident that I was going straight. On
reflection on the ground I think that the loss of the string in an open
class ship presented more of a danger than say a blocked static ( had
that once too! ) and loosing vario, altimeter and ASI all at once.

Ian