How many flying schools teach takeoff with 10 deg of flap in a 172 these days on a bitumen runway? I’d tip many. Years of experience tells instructors and pilots about what works well and what is safest. The dinosaur aircraft manufacturers need to get off their butts and update their POH’s with the 21 century. Golly, if I climbed my aircraft at the recommended speed, I’d have cooked 20 engines by now!
For the purposes of this discussion there is a big difference between reducing pressure on the nose-wheel and keeping it 2 inches off the ground.