system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How can some buisnesses say they won't accept bills over a certain denomination?

I guess if it's your business you can do whatever the hell you want, but it's strange to think I can walk into a store and have that crisp $100 dollar bill in my wallet be completely worthless.
gpt
If a company is willing to take large bills, they have to keep more cash on hand to make change, which means that they risk losing more money if there is a robbery.

Further, it's more common to see large bills being counterfeited than small bills.  By not accepting large bills, they reduce their risk of losing money to counterfeit bills.