I have found that to stay motivated I have to press pause and go somewhere outdoors amongst trees, dirt and bees. However, every time I have lived in a medium to large city the great outdoors were fairly inaccessible.
A car is necessary to drive far distances to reach the nearest park or preserve. A wild piece of land with nature growing freely beyond fences, landlords and fees is hard to come by near a city.
Did you know there are hardly any sidewalks in the city of Nashville, TN? Pedestrians have to walk next to the edge of the road, and walk past benches with advertisements cautioning drivers to look out for pedestrians.
Downtown has plenty of sidewalks, and some upperclass neighborhoods get some sidewalks but not the whole city. Since when is providing a safe stretch of land to go out for a walk only for some and not for everyone?