Assisted living is not what I would recommend for someone just starting out. You don't have much opportunity to use your technical skills, and like everything else, if you don't use it, you lose it. Also, you need experience in all areas of geriatric assessment, including psychosocial and spiritual, which are things most nurses don't get much of in school.
Once you do have some solid experience, assisted living is a fun work environment as the residents usually have at least some of their wits about them and are not acutely ill. The educational level of nurses isn't all that important; many ALFs have LPNs only, and RNs can do quite well with an associate degree or diploma. The pay tends to be on the low side, as many of them are owned by for-profit corporations, and they may not give you enough on-site hours to do all the work that needs to be done. (For example, I was in the building only 20 hours a week, and in that time I had to do in-home screenings of potential clients, write service plans, teach and supervise unlicensed staff, do quarterly assessments of on-site residents, deal with physicians & families, do admissions, help the administrator run the facility, check all the physician's order sheets, review medications, check the alert charting.........well, you see what a challenge it can be.
Good luck with whatever you decide to do!