Plenty of people have laptops or old office desktops. Fiber is available pretty widely in much of the developed world and in a dense city 5G is likely to be better than copper. Availability of a decent connection is location dependent, ability to drop a grand on a console is dependent on your finances. Some people might live in a city but not have that much disposable income.

E.g in Romania, gigabit connection is 8 euros a month. Basically anyone can get it. But I don't think bandwidth is anywhere near as important as latency. So the availability is even more location dependent