Well, I think it's a culmination of all that she has learnt that caused her to go for it. It's not just the words of one man, a series of events and information she has learnt. Besides, she should be more than capable of handling herself should trouble occur, being a Mercenary and all.
I was not expecting Chief Teagan to tell her the direction that Olivia and the girls were heading in this chapter, but it is a welcome development. Looking forward to reading how their meeting will play out in the near future.
