It's a form of self-expression.

Source: Manila Bulletin (https://mb.com.ph/2021/06/01/look-kids-of-celebrity-parents-chito-miranda-isabel-oli-and-marj-barretto-are-now-models/?utm_source=rss&utm_medium=rss&utm_campaign=look-kids-of-celebrity-parents-chito-miranda-isabel-oli-and-marj-barretto-are-now-models)