Nothing has changed from how it was in the past.
Because the bride was a member of the groom’s family up until the time that she was married and formed her own, the groom’s father used to be the one to escort her down the aisle at weddings. When I was younger, things were like this. In modern times, it is used to represent the coming together of two families, and the ritual continues to this day.
In spite of this, it was only natural that the tradition veered off course in this particular instance. The slacks that Dad was wearing fell apart in the center just before the big event. There are a lot of guys out there who have had their pants ripped open, but the majority of the time, it’s not because they’re trying to impress their daughter.