That's how we learn up here.
Try flying a .40 trainer on an OS .40 LA at 7200' ASL.
Figure a couple hundred feet on take off roll and maximum 20 degree climb (steady). Thank god there aren't any trees at the end of the runway.
I think it should be a skill the everyone should know. How many times have you seen a deadstick not make it to the runway because the pilot didn't know how to manage their airspeed and altitude? This is of course leaving out those deadsticks with planes way out there that glide like a rock.