Customs vary from place to place. In my home, my mother-in-law and father-in-law will give the groom red envelopes on the wedding day and at the wedding. The quantity is self-determined, generally not less than 5000 yuan.

On this day, mother-in-law and father-in-law will also give the bride red envelopes. Under normal circumstances, they will discuss with their mother-in-law's family, and the number is the same.