My mom now has a job

I'm not sure what to think. I just got the email tonight. My mom hasn't had a job since us kids started coming, so I've never known what it's like. Here's part of her email:

"I just wanted to share with you that I have a job working in a facility (RHA Howell- Clear Creek) with severely mentally handicapped people, ages 5-70. It's not a hospital and the people are not necessarily sick, although some have trachs and feeding tubes and wound problems due to their mental disabilities. Many cannot walk and most cannot communicate verbally and therefore use creative ways to get your attention! But this is their home, where many have lived their whole lives.
...It is all so new to me! I start tomorrow, orienting with another nurse. (I had a special training class on Thursday and Friday - learning different behavior patterns, how to better understand their conditions, how to react appropriately, and how to defend myself with blocks and moves that keep both the clients & myself safe - things like that.)
...Everyone one I have met there is friendly and loves the work; as the Director of Nursing told me first thing, "You will either love it or hate it - no in between." Those that don't love it leave.
...I would really appreciate your prayers."

I'm really glad that she got a job, but I guess I'm just a little nervous for her. That part about her learning how to defend her self...i just...don't like at all. Please also keep my Mom in your prayers! Thanks.