Honestly, in a ideal world beginners would taught EHAA (e.g. 4 card 1-bids, solid openings, preemptive 2s, weak/mini NT), which basically requires nothing artifical beyond Stayman. (Stuff like blackwood, NMF, and 4SF are nice of course, but really not strictly nessesary). The style can be surprisingly effective, and more importantly will help giving a novice/beginner a good sense of natural, constructive bidding, and hand evaluation.