I think you're on the right path, talking about why our monetary system is broken. Discuss how Bitcoin as a hard money with digital scarcity is better money. We know how much there is or will be. We know Bitcoin's monetary policy.

I think The Bitcoin Standard is a great book for them to read after you have them interested.

As for accepting Bitcoin, there are several options. They can run their own node and BTCpay server. They can use a host such as Voltage. They could use OpenNode with their existing Point of Sale. They could use Breeze Wallet and it's PoS features.