There is no way to guarantee your child will be enthusiastic about practicing. If they are ready to practice, they will be. Don’t force your child to play an instrument they don’t want to. Instead, try to see what instruments your child might like. For example, if they pretend to play an instrument when a song comes on, like guitar or drums, this is a good indicator of what they might be interested in.
If your child has friends who are into music, this also helps as they might start to get into music because of their friends. It also helps if your child joins a group of musically talented children around the same age. Once they see the other children being ready and willing to practice, it might encourage them to do the same.
But how do you encourage them to practice?
The short answer to this is to make it fun. Let your child play something they like in addition to all the other music they have to practice. For instance, it’s very easy to find books at music stores with music scores from popular movies. Then they can play these songs when they’re done practicing their other music, for fun. Another way is to let your child have access to music so that they keep their interest in it, which can lead to them practicing more often. Let their music teacher know about these methods so that they can find your child’s favourite songs for whatever instrument they are playing and teach it to them during lessons.
It is also important to note that it is better to have more repetition than
long practice times. Students that practice for short periods of time, like 10-20 minutes 4-5 days a week (plus the lesson day), will do better and advance more quickly than their peers who practice for an hour or two once or twice a week.