2 reasons for that, first they are ineffective, just wash your hands. Second, if you buy quality disposable gloves the cost really adds up.
Work with one guy that bought boxes of gloves, cost about $150. Gone in 10 days, he puts on a new pair every 30 minutes. He also goes thru a gallon of hand sani in a week too. He is young and in the low risk category. Never seen such stupidity before. I think he is afraid of his own shadow too. His wife seems like a paranoid princess at the sametime