In Italian Conservatories the VIII° year's program includes, among other things, 23 (!!!) etudes from Clementi's Gradus ad Parnassum , plus 24 P&F from WTC.
Anyway, IMO you could spend the same amount of time/efforts learning pieces not less difficult but much much more satisfying in terms of musical content/level (of course I'm referring to Clementi, not Bach, even if 24 PF are MAYBE TOO MANY

)