I have for the past 15 years. I offer a ( Certification Class) which is 4 hours and costs $50. I teach them how to thread the machine, wind bobbins, change needle, check tension, oil/ maintain, load a quilt
then we quilt a practice quilt ( ( generally {2} 2 yard pieces of muslin , batting and dark, contrasting thread ))
sometimes it takes a person the whole 4 hours or more to be comfortable, sometimes a person takes to it quickly and wants to quilt something ( small) they brought with them after the practice quilt.
after they have taken that class they can rent time to quilt their own for $20 an hour. I’m always there to help load, trouble shoot if any problems- but I don’t stand around watching them, I let them quilt on their own.
i have friends who after taking the class & doing a couple of their own have decided they would rather pay me to quilt for them. It’s more work then they thought it would be. They appreciate me more.