The 4p S

Price
She can decide on the price of the product but when she will become a franchise they know what price to sell and sell at the price they want.
Also the price to start up will be cheaper than the franchise because if they have a famous name they will cost more because they are already well known.

Product
She gets to choose the product and what she wants to sell and at what price. She can sell like sandwich with coffee and cake. But a franchise has its own product that she can’t change and choose the price of and its unique selling point.

Place
She would have to think really hard on where to locate her café where there isn’t any tough competition where they can knockout her business. Franchise will know where to locate it and will tell her the best place where no competition or tough competition like Café Nero or Starbucks or even Cost Café because they are already well known café shops that the locals or people will trust because they have been there already.

Promotion
To promote her business she would properly have to start off with leaflets