There are lot of online sites that don't do as they say, only to take people's money. You have to do research as in any line of work. It's best to check a site that is not looking for money and offering valuable information about the business, like what to watch out for and what is worthwhile to pursue. I owned a modeling franchise for 10 years and have a site that explains the industry in detail.
You should check a few sites like this one before you make a quick decision.