From my own personal experience, when my daughter (who was yung) wanted to sew. Get her a good standard machine, teach her the safety RULES in which...
I googled her and checked the White Pages, using her address. All I get is a John Esposito II with no other known people and no phone number listed....
Bobbin covers and accessories are very easy to replace, reasonably priced. Let me know because I have some that may be just what you are looking for...