Stop right there! One: you cannot get a starter kit and a fish on the same day. Two: No fish should ever live in a bowl. Three: if you insist on doing this, the fish will be dead within a week!
The fish tank needs to be set up and cycled before any fish is ever put in it. Go to a book store, pet store, or your local library and get a beginner's book or two about aquarium keeping. It should tell you everything you need to know about keeping fish.
No fish can be kept in a bowl. The minimum tank size is 2.5 gallons. That is the bare minimum, bigger is always better. All tropical fish need a heater, and all tanks need a filter. You cannot keep the environment suitably clean without one.
You need to know what kind of fish you are getting. Different fish have different needs! If you are getting a Betta, it needs Betta food and gentle filtration. If you are getting Mollies, you have to get a group of them, they are schooling fish. If you want to get a goldfish, you have to have a 20-gallon tank and strong filtration, they are huge waste producers.
If you want a good experience keeping your first fish, resist being impulsive. Do your homework. Learn how to set up a proper home for the fish, and what it needs to be healthy and happy.
Where you live makes no difference, what kind of home your fish lives in is everything.