The nose wheel does not have to touch first. And even if it did it would not have to be enough to make any real difference.
Picture this; you descend to a matter of inches above the runway. You reduce your power setting to near zero ground speed. This will make the landing a simple matter of milking it down until the wheels are on the ground. You could descend at 1" per minute, {you can't get any flatter than that}, if you wanted, (simple trim adjustment). You would touch down so softly you might not even realize that you have landed.
The reason you don't have to lift that nose to take off in a 150 is when the trim is set for take off it is slightly nose high. On the approach the plane simply could be trimmed the for landing eliminating the problem.
You do not have to stay down on the ground to make a landing. Have you ever heard of a touch and go? Each touch and go is a LANDING your log book.
I am not a beginner, I have been flying since 1976 and have hundreds of hours in each of the C150, C152, and C172. I specialize in helping students that can't learn to land. I fly a C150 3 to 4 hrs a week. I also hold records for shortest landings at out airport. Including a runway with tall trees on one end.