Im probably dating myself here, but way back when I remember there were nurses and there were nurses aids. An LVN was never called a nurse. They were a nurses aide. Now all of a sudden they have been elevated in status. So were really having people that are fairly unskilled doing what used to be a skilled job.
Unless Im missing something, remembering wrong, or their education has changed. It could be, because I never really paid that much attention.
An LVN Licensed Vocational Nurse is far below a LPN Licensed Practical Nurse, who is below and RN Registered Nurse. Of course, most nursing home workers are far below LVN. They are unskilled.
The important thing to understand is that the License in no way guarantees the skill level, competence and most importantly, the attitude of the care worker. There are unlicensed workers who are very good. There are licensed workers who are very bad. And of course there are those on a continuum to the other extremes.