Nice dream, but have you put any numbers to paper to see how realistic it may be?
Example: Cleveland, OH is a city of abut 400,000 people and 191,000 households. How much power can those peole produce?
Source:
https://en.wikipedia.org/wiki/Human-powered_transport
<snip> In lab experiments an average "in-shape" cyclist can produce about 3 watts/kg for more than an hour (e.g., around 200 watts for a 70 kg rider)<snip>
Assuming that every person in Cleveland regardless of age, physical ability, or sex put out 200W per hour for 2 hours per day of recoverable energy, that would be 160,000,000 watt-hour per day (160,000 kWh). A lot of power?
The average household in the US consumes 30.16 kWh/day. The 191,000 households would consume 5,760,560 kWh/day.
Thus, if the model of every person putting out 400 Wh per day could be attained and the energy captured, it would only represent about 2.8% of the total households' needs. Of course, you have automobiles, industry, hospitals, schools, etc. that require even more energy.
In our obese American society, do you really think that 100% of people will put out that much work for 2 hours every day, 365 days per year?
John