How old do people usually get married

MARRIAGE CUSTIOMS IN VN
1 How old do people usually get married?
2 How long is the engagement period?
3 Where is the wedding ceremony tate place?
4 What dose the bride and groom of ten wear?
5 What types of food are served at the reception?
6 What kinds of gifts do people usually give ?
7 Where do couples like to go on their honeymoon ? how long is the honeymoon
Giúp mình vs cảm ơn trc ạ