Ask your clergy person.
Vows are what people write at a wedding. Vows can say anything but people using write what's in their heart.
No they had traditional vows, minus the word obey.
Yes, many people do.
That's optional - it depends what kind of wedding you want.
I wouldn't call it preferences. It would depend on the individual wedding situation itself. Some people write their own wedding vows.
Some people prefer to steer away from traditional vows for something more unique for their special day. Some prefer to make their vows much more personal, endearing, and to more accurately describe their priorities as a spouse.
Solemnly promised
The Vows was created in 1973.
5 Vows
Traditional wedding vows
Then they are different, additional vows.
The vows are present at the beginning of the wedding ceremony.