I applaud bringing beginners of all ages onto the course.
Dangling the carrot in front of them is huge in the motivation process.
Too many players spend too much of their learning lives on the range, and never get to see the beauty and joy of the coure, or the point of the game.
I do wonder how you implement Operation 36 unless in golf carts, as your walk is now many hundreds of yards between holes.
The other limitation is it takes the sheer joy out of hitting a driver, which, along with putting, can be the only shot a beginner can actually do with much success.
In playing lessons I do a lot of this-Tee off, then move nearer the green, and I often tell beginners when joining a more experienced not to "pick up" after a couple of bad shots, as they are often told, but to skip the middle of the hole.
Tee off,maybe hit a second shot, then drop near or on the green, so they are experiencing something besides just bad full shots before they "pick up".
AS long as they keep up. Many beginners are never allowed to putt because they have been told to pick up at some point in the hole.
edit:I'm assuming you mean 9 holes.
Also, I'm not a fan of formulas because some players might never graduate beyond 25 yard holes, thus eliminating the fun of a driver.