This has nothing to do with senior citizens. The cops showed some restraint because they were being filmed, but should have used more.
Hitting someone with a club because they dare to grab it to prevent being pushed with it in the first place is out of line.
Without the cameras they might have killed this man, or injured him for life and ruined his life by charging him with a fictitious felony like they do all the time.
Ubiquitous video should convince us all that
the world would be a better. safer place without cops.