In the UK https://www.uswitch.com/broadband/packages/ shows the cheapest broadband package - which includes telephone line rental - to be £18 per month (average across the contract when delivered router is included). That's around $25 (you can get "free" with a telephone service).
What struck me was the kid in the header image has a swanky new laptop, the story confirms the kids bring their laptops with them. Could they pay their neighbour $10 to leech the neighbours wifi? Do they need swanky laptops or just an internet appliance (my work computer is a 3rd hand toshiba on WinXP! - good enough for net+email)?
Do people in the USA tend to go to libraries for wifi rather than [near] to a cafe or other private business leaking free wifi?