Personally, I think it is best not to wear Hanfu for ordinary friends' weddings. Although many people advocate wearing Hanfu now, some people think that wearing Hanfu is too high-profile to attract others' attention. If you want other people's friends to get married, you must make sure they are high-profile. If you are too high-profile and attract others' attention, your friends will have some bad ideas, so I suggest you not to wear Hanfu, if you really want to.