Sufficient scheduled practice time on a daily basis is the surest guarantee that you, or your child, will experience consistent progress at the piano. Learning the necessary skills to become proficient at the keyboard will not occur by simply going to piano lessons. It takes committed practice on a daily basis during the week to put skills covered at the lesson into motion.
Parental support is an extremely important factor in musical training. Children whose parents take an active and honest interest in their child's progress tend to be more enthusiastic and productive. I strongly urge a parent to attend the weekly lesson(s)--this way, the parent is better equipped to assist his/her child with home practice sessions.
As mentioned before: music is not easy and can, at times, become frustrating. Adults often take for granted that children are rarely self-motivated and lack the maturity (and self-discipline) to put in that all-important practice session. With commitment to learning the art of music comes the decision to practice on a regular basis. Consistent progress results in pride, satisfaction and a sense of accomplishment!