well she's right in that you need college, business school, trade school something after high school
but for a bakery business, culinary school is optional--
to do cakes in particular--unless you have the big giant bucks and/or want to make a car payment for the next 25 years--you don't really need culinary school for the cake making part of it
the industry has been made very easy to learn for those who want to work hard--you tube, books, dvds, and here on cc--we share lots and lots of information
culinary school would be great at a nominally priced community college for culinary basics--pastry courses are geared toward restaurant pastry chefs/chefing
and 'open a bakery' is a very broad statement--tons of different directions to go
so yes you need school but for the business end of a cake business, culinary school is basically for restaurant pastry chef and you come out of school able to make the same wage available before you went in
it's a heartbreaker industry

it looks like fun on tv but for every episode of Duff there was way over a hundred hours of work
so you really gotta love it ;)
and sure school would be a blast but you don't necessarily get the bang for the buck
dang it i keep trying to end an a good note
so you really gotta love it ;)