I'm not an official biologist, but am fairly heavily self-educated in biology (actually, I never finished high school and only have a few art courses and some techical training).
School of Hard Knocks, as we used to say.
My mother never finished high school. In fact, she barely made it into high school, her parents were chronically ill and needed her at home to care for the house and her younger siblings. I seriously think she was heading to be the maiden aunt, the dutiful daughter who remains single and cares for the family and her parents, until she got pregnant at age 27 and "had to get married".
But she taught herself from books, read avidly and I remember when I was a uni student studying Physics (among other things) and having a decent discussion with her of Special Theory of Relativity.
So never disparage self-education.
I spent some of my years growing up, living in the country. The ads there are different - they're aimed at farmers who only are indoors at mealtimes, and so it's the only time that advertisers have a hope of hitting their mark. I well remember trying to eat dinner while watching ads for sheep drench and worming medicine!
Marg