/kloc-Can I give it to Aunt Dai Xiao when I am 0/9 years old?

19-year-olds don't need to give it to Aunt Dai Xiao.

In China, Dai Xiao is a traditional funeral custom. According to the provisions of the Book of Rites, children, grandchildren, grandchildren and other immediate family members need Dai Xiao, while other non-immediate family members do not. So, if you are 19 years old and you and your aunt don't have lineal relatives, then you don't need to give your aunt Dai Xiao.

The answer is for reference only. Don't be blindly superstitious.