Answer:
over the last 100 years we have developed new transportation methods cars, planes, trains, each of these take u places in a certain number of time and because of these creations people can move around more in a efficient amount of time, so people decide to start moving around and these helped, weather u wanted to take a plane down from NY to FL or France to Mexico, so now if u want to move someplace new that's far away you can and that's why everyone's so spread out everywhere because we have new ways to get places that help us get to our desired location