Is The Wedding Industrial Complex A Good Thing? Ctd

A reader writes:

When did it become a requirement that brides and grooms and often their wedding parties entertain their guests with elaborate, choreographed "dance" acts?  In the past year, I have been to three such weddings where the guests were subjected to painfully lip-synched dance numbers, once in the chapel and the other times at the reception. What gets on YouTube are the "good" ones.  What aren’t preserved are the shows that are cute for the first couple of verses, but by the time the bridge arrives Fred and Ginger have left the building … and there are still minutes of emotive shuffling to endure as we clap along, some of us to the beat.

I suspect it started when people who had never been required to take a proper dance lesson as a pre-teen (a mortifying but enriching experience that is enhanced by attending the lesson with a sibling, preferably of the opposite sex, with whom you are not currently on speaking terms) panic at the thought of having to dance a proper waltz or foxtrot for the traditional first spousal dance.  So off they go to a dance studio for 3-pack of lessons.  Once there, the instructor assures them that they’re "naturals" at the simple steps so, doubling down on the lesson plan, they aim at a "Dancing With the Stars"-worthy extravaganza, roping in their unsuspecting bridesmaids and groomsmen. 

Perhaps if parents resumed subjecting their children to proper dance lessons, these performances would cease.  Please help.