It's interesting to see that you are considering integrating cryptocurrency as a payment option for your customers, which I don't see anything wrong. But, I assume you have thought about the volatility and are prepared to accept it regardless of how it fluctuates.
If you are accepting anything other than stable coins, it means you understand how volatility works. But since crypto isn't your primary payment option, I think it's fine, as you will have other funds to run your business even when the crypto market isn't doing well.
Good luck with your new plans, and don't forget to apply the QR code method that has been suggested by other forum members, since it's more convenient.