The issue with these statistics is that they look at the average, which is heavily boosted by the exceptionally expensive weddings of the higher upper-class. The median is significantly lower.
https://silkstemcollective.com/median-and-average-wedding-cost/
Also I’m not American, maybe people there just spend a lot more on weddings in general than what I’m used to.
I was actually surprised when I was in the UK last year and people were standing on the right in the escalators. But they walked on the left in crowded places. I was expecting all pedestrian traffic to be left-sided, but it was more mixed, like their measurement systems…