If you are a beginner who wants to learn how to run a sewing machine, you should start by learning use cases of sewing machine feet. Each sewing machine foot has a different use case depending on the product being sewn. Therefore choosing the right sewing machine foot is very important.
If you want to avoid any mistake, you should know which foot to use for a certain sewing process. Otherwise you may get wrong results other than you intended. For that reason, your sewing machine training should start with this subject.