Because bacteria build up an immunity to antibacterial anything and if you need a shot to fight a virus or bactieral infection it MAY NOT WORK AT ALL because you've built up an immunity to it. Didja know that or has that changed over time? Anyone?
We never use antibacterial soap. Never ever. The only thing we use is LYSOL. Not on our hands. Those we wash with hot water and soap. What are y'all doing?