I would first get experience in the pet retail world, and perhaps even take some business classes. And then, save a TON of captial and write a business plan that covers absolutely every aspect of the business.

Not sayings it's NOT doable, but definitely shouldn't be something you decide to do on a whim. Where's your competition, where's your market, how do you fit into that market? What are the county or states regulations for that type of business?

Tons of questions to research. I'm finishing up my Bachelors in Business Admin with an emphasis in Entrepreneurship. I'm hoping in the not to distant future to start a retail venture of my own. I already have a rough business plan laid out, but am no where near ready to undertake that sort of venture.