一個5歲左右的小朋友，學琴半年左右會去到咩程度?

Lilna

My son started playing piano a bit over 4 years old.  Not until 5 years old, his fingers seems to coordinate better.  At first, I really think is a waste of time and money, it seems there is no improvement at all.
But now it is getting better.  He has interest.  I did not force him to practice.  Every week 2- 3 times, 30 mins each time.