Please make sure you do your research on any franchise. Other than the top tier franchises like McDonalds and such, which require millions in cash and net worth before considering you, many are scams and not proven. Even Subway has plenty of stories of caution. There are benefits to going with a franchise but it is by no means a guarantee of profits. Do some research on "Dickeys BBQ" as an example.
Fun fact, Subway is the cheapest franchise to start up. I think they say you you can open them for as little as $50k. Terrible sandwiches though.
I looked into getting the Waffle House franchise territory for Las Vegas about 20 years ago. At that time someone already had the territory locked up. To date we still don't have any Waffle Houses in the Las Vegas area. The nearest Waffle house is in the Phoenix area which is 242 miles from my house.