Brooke
That video about sitting like a lady is funny! Sort of.
When I was little, it was the 1950's and the only clothing option on our mission was dresses for girls.
My mom did her best to prompt me to sit "properly" and when I continued to resist, she sat down opposite me with legs spread and let her underwear show. I was so horrified I complied with proper sitting posture, but resented the whole dress/skirt thing, deciding it was obviously invented by misogynist males.
When my daughter was a toddler, even though at the time I attended church, I refused to make her suffer by dolling her up in dresses in which she had to be ladylike. Instead, I designed/sewed cute dress outfits that included matching bloomers and when she was five years old I began making pink, lacy corduroy church overalls with matching shirts so she could do flips and cartwheels in the church yard as she wished (she was on a tumbling team by then).
If anyone tried to lecture me on my daughter's church clothes I replied that she was never going to be forced sit still because of some oppressive article of clothing that shows underwear if she moves around.