Your first taxi ride will determine several things about you in the world. So be a bit careful how you answer the questions.
Please note that all of your answers will help determine some of the specific facial features of your character. But these are more or less irrelevant in the big scheme. Play around with them a bit and you will see differences in eyes and hair.
The most important answer that you can give has to do with when Kapp'n asks why you are visiting the town. You have options of:
The Town Hall
Your house will be located close to whatever answer you choose. So if you want to have your house on the others side of town from everything, choose the border. If you want to be close to Tom Nook's then choose shopping.