Do you think that businesses that deal with cash experience a lot of theft from employees?

What leads me to ask this? The hairdresser that I’ve been going to for almost 20 years recently had to fire their receptionist. The lady had been there about 10 years and they found out she was stealing tips. The gas station where I go and sometimes talk with the owner told me she had to fire a kid that worked there, that they found was stealing from them. Just two examples recently and both came as a surprise, especially the receptionist at the hairdresser.