For Italian clients: Lightning is the cleanest path.

Strike works in Italy, Wallet of Satoshi is popular, and Coinos is good for business use. The client gets a Lightning wallet in under 5 minutes.

From the client's side: scan QR, send sats. From your side: receive immediately, no chargeback risk, no Stripe fees.

For the discount conversation: frame it as a payment processing fee savings. You save 2-3% vs card fees, pass some of that to the client. It is accurate and makes the ask feel reasonable rather than demanding they learn new tech.

If they are resistant to Lightning specifically, a simple Bitcoin address works too - slower confirmation but familiar to anyone who has done crypto before.