seeing examples online theres people that give like a 20% discount if paid in bitcoin I've even seen in other countries up to 80% off if paid in bitcoin....granted you want to be paid for your good work the people have to understand it is also a money too and to get quality work u pay quality money...I think that the 20% could be a good enough incentive to pay in bitcoin especially if you are able to teach them to use strike... can pay you in dollars you recieve bitcoin they never know they paid you in btc...also with the invoices try using zaprite super easy beautiful design and all you need is an email and a wallet with some sats!