I guess that makes sense all over the world. We know modelling is totally not glamorous some might think.
You need to look flawless, be able to handle all the critiques and be fierce for the next job.

I used to see many girls being fooled by scam agencies. Girls that you know they don't have a model profile, but the agency would make them believe they could be the next Gisele Bundchen to profit with with book photographs.

My advice is: If you think you could be a model and you really want that, find the best and most professional agencies in town. They will tell you. They will pay for your book if they believe you can do it.