Well I much prefer RAW shooting to JPEG shooting and have not gone back to JPEG since moving to RAW - however I think in the early days one should stay with JPEG shooting until they understand basic editing processes (saturation, noise, white balance, sharpening, contrast, levels (auto and a smattering of basic manual levels editing) and some idea of curves as well) With those things understood one can take advantage of RAW mode - before that I think its an extra and confusing step for people to take.
Moving on as a RAW is like a digital negative a printing lab won't know what effect you want from a shot - they can print a JPEG or edited RAW no problems as the effect and look of the shot are set factors - from an unedited RAW they would have to make a lot of choices that would greatly affect the look of a photo - thus there would be a high chance that they would go for a look you do not want. Ergo I would be very surprised if they did direct RAW printing.
Edit - also if you think a photo straight from camera needs no editing (JPEG or RAW) I urge you to run an auto levels over the photo - 9 times out of 10 it works without need to modify the results and the difference is very noticable