I think people solidify the direction they want to go and the style they want to have once their puberty passes. I think your twenties is when you learn new things and you have the opportunity to give your all to something, whether it's work or love.
YunhoI've found that little kids show a more distinct reaction when the songs are ones that everyone can enjoy together. Because people's preferences change with the different countries I visit, I go through trial and error to figure things out.
Yunho