Originally Posted by TennisCoachFLA
100% correct. Teaching the proper serve for example is 100 times harder than teaching a 1hb. Many top D-1 players and pros have 2hbs, none have pancake serves. Any pro that takes the time to teach the serve correctly is certainly not looking for instant gratification and would teach the 1hb if they thought it was better for that student.
which explains why most beginners use a pancake serve, with the coach standing on their side telling them, "good" and tossing them another ball.
It isn't until they are very good, and really begin showing a lot of improvement that they are taught to hit a serve with a continental.