Yes and no, it really depends on the student and their goals. All of our piano teachers will agree it is best you have access to a quality acoustic piano for most piano lessons. An acoustic piano develops the fine motor skills necessary to play music "musically" (i.e., reproducing the louds and softs of music). A digital piano is really not feasible for 95% of piano lessons. We teach on acoustic pianos here at our studios and often notice students struggling with their assignments… Only because they are practicing on inferior electronic instruments! Hence, a "plug-in" keyboard is okay, but really not the best for most piano lessons. More questions?