I fly out of a 1,760 foot field. That's not long but it's not short enough to require short field procedures (unless you've got 4 fat guys in a 145hp 172 on a hot day).
Instructors bring their students in to practice short field procedures. I think this does a real disservice to the student. It leads them to believe 1,760 is short and that they can just go back to their 3,500 foot runways and practice sloppy airman-ship. Of course these instructors are probably just teaching what they learned.
Short is in the mind - and experience - of the beholder. I flew for a few years out of an 1800' runway. Even did my instrument training there. So what is short to me is different than what is short to someone who has rarely flown to an airport with less than 3,000'.
That reality doesn't bother me all that much. Frankly, I don't see the "disservice" of bringing a student to any strip substantially different than what they are used to.
Not bringing them to one nearby would be the disservice.
We have a wonderful BBQ restaurant on a 2500 runway (ID: BQ1) here. On one end there are trees on the approach and associated 300' displaced threshold. Short? Not really, but too many pilots are hesitant about going there because of the length because the are used to 4000-6000'. Heck, one of the flight school/clubs even prohibits flying some of their airplanes into it
(lowest common denominator rules).
That's
really unfortunate. Much more unfortunate than never flying into an airport with the minimum POH runway length. One thing I've done with run-of-the mill recurrent training is to try to overcome that hesitation. A flight for lunch is, of course, best, but I've come up with an exercise at our 6,000' runway. There's a taxiway exit 1300' from the threshold. The goal is simple - to turn off at that exit
without heavy braking. Most do it the first time, and it's a great confidence booster - they learn the can if they need to. Others need work, which they insist on because they think it's really "cool" and decide to practice it regularly.