If you were going to become a professional, such as an attorney, or physician, then college would be the right choice. It would even be the right choice if you did not really know what you wanted to do. At the very least you would learn enough through a general studies program to be able to obtain a good job when you were done. Along the way you just might find something that will peak your interest.Other professions actually require mainly on the job training. Lines of work such as construction, do require an amazing amount of skill, yet do not require a college degree. Instead, this is something that many in the field get into when they are young and learn as they go.There are some paraprofessional programs out there that train people to work with other professionals, like aids. And example of this is the paralegal profession. They work with attorneys, like assistants. Training for this is very specialized, and usually requires attending a two or three year program.Becoming a licensed electrician is a little more complicated. It requires formal education in an electrical program, and then also an apprenticeship after that. That means that you would have to work with another more experienced electrician first before being able to work on your own.People that work with refrigerant are very similar. Some of them attend heating and air conditioning schools in order to master the necessary skills to work in the field. Others are hired in at entry level in some companies and learn on the job. It is just one of the many fields that requires some education beyond high school.