Help!Give me some reasons why I should pursue nursing and not take my jobs promotion!

I wouldn't be a hygienist due to the fact that it is just as much school as nursing. However, as an assistant the hours are good too. The pay can be decent. To start maybe not more than $13 an hour but you can definately make more the more you are in the field. I dunno, I just don't know what to do. I am up in the air now and I hate feeling this way. But, I think I'd rather be in mouths than cleaning up feces or oozing sores....