Numbers please, where is the scientific research behind the statements?
And I strongly suspect that the custom derived from the notion that the father had a protective role toward his daughter as in most cases, he would have better insight than a young, inexperienced person who could easily be snookered and marry into hell on earth.
Same goes for handicapped parking, most disabled claim to not want special treatment.
Description: The last one is plainly ridiculous, are you going to pay her dad for her hand in marriage with a horse, a couple of sheep etc. Why has it gotten bigger, oh my, I should be extra lubed up for this.