No it is not mandatory. Some parents (could be the bride to be's parents) may have the groom, bride, their parents and the wedding party out for dinner in the evening a few days before the wedding, but this is not mandatory either.
Traditionally the groom's parents are in charge for the rehearsal dinner, their own wedding attire (including the groom's), and the couple's gift. It really just depends on the brides and grooms...
If they want to and the couple is willing to accept their gift. The days of parents' being expected to foot the bills for weddings are over. In most cases, the couple, along with both sets of...
Traditionally, The grooms parents payed for all flowers for the wedding and reception, alcohol for the reception, the bridal shower, and the honeymoon.Modernly, the bride and groom pay for their own...