Depends on what you want to do. What do you want to end up with? An RN? Then go for it now.
I work with an awesome LVN who is limited in her scope and cannot do patient assessments. I would never want to have to ask an RN to do my assessment. She is perfectly capable and in fact more capable then some RN's I've run into.
I'm still fairly new to all this nursing stuff as I had NO background in medicine and went back to school in my late 30's. I've been a RN for 5 1/2 years now and I still do not understand how the LVN role materialized. I've been meaning to do some historical reading on this and since this is the second time I've addressed this issue, I guess it is time to start digging.
In my area of the country, LVN's mostly work in long-term care centers, which is a wonderful and honorable place to work. Taking care of our elders is important. But if you want to branch out and work in critical care areas, you have to start IV's and hang IV meds and do patient assessments and that takes being an RN.
So, again . . what is your goal? NICU? CCU? OR? ER?
It doesn't take much longer to go for your ADN RN. At my school it was one year difference.
Off to dig . . . .