I got the go-ahead for a kilt at my own wedding.

[sbevans]

Is a wedding not a commencement of a partnership? Many modern weddings do not have the bride's family pay the entire freight so the Groom should have a legitimate say in how he and his groomsmen are dressed. It is not always about what the bride or her mother wants!

I couldn't agree with you more. As with any good partnership, it is important for both partners to have input. As the OP stated, he likes the idea of people wearing their clan tartans, but what does his wife to be like? And if the others standing up already have highland attire, are they able and willing to incur the expense of the rental? Planning a wedding requires compromise, but don't loose sight of the most important part, which is the many happy years you will have together!