I've been a hospice CNA for 8 years, I think being a CNA before LPN school can give you an advantage so you can be familiar with healthcare settings and it helps you to just be more comfortable being around patients. Taking care of their personal needs; it can be somewhat of a shock at first if your not used to it. Most CNA classes are quick (about 8 weeks) and relatively inexpensive. I'd say its worth it.