Never having heard of Lynne Spears, I googled and went straight to the Wikipedia article. She seems like an intelligent, attractive and very talented young lady. I was particularly impressed by her having gone to high school in McComb, Mississippi. McComb, as all true Bo Diddley fans know, is the birthplace of the Great Man himself, and hence of the Bo Diddley Beat.
I assume the book you referred to is merely the product of your sardonic imagination, but who knows? She won't be the first 16-year-old to become a mother, and probably has more on the ball than 99% of the rest of them. I'd put more confidence in her views on mothering than I would in a Creation "Scientist's" views on science.
