My kids are in P5 and P2. What would you advise if they need English, Chinese, math tuition ? Other enrichment such as piano dancing ? How much will the monthly cost be?

Piano and dancing or other non-academic pursuits only if they had genuine interest or passion. Give them a couple of trial classes to try then decide if they want to carry on.

Strongly advocate for language lessons, especially for young kids. The more proficient/number of languages one can mastered, the more paths/options it opened up for one when they grow up

Coming from a 28 year old, I really appreciated my mom for enrolling me in Morris Ellen and Le Hua, for learning British English and China Mandarin respectively when I was in my early years of education. This strong foundation in language skills has built confidence in my life now, being able to be a better communicator both written and spoken in the 2 top languages in the world.