It is not popular to have a bridal chamber there, but it is very popular to pick out ashes. The basic process is probably that the host will deliberately bring the father-in-law and daughter-in-law to that topic when the couple and their parents are on stage. What's more, it's too much for my father-in-law to hold his daughter-in-law, carry her behind her back, kiss her, and so on. In short, there is no lower limit, so I hate this custom.