Along with needing to drink frequently, cyclists need to pee fairly often, a fact that is usually ignored. I sometimes wonder if the greater numbers of male cyclists is simply due to the fact that we find it easier for us to pee where there are absolutely no facilities. Along much of the East Coast and in New England, I found extremely few public businesses that sold food and drink which provided a rest room. One day in Quebec, I waited out two heavy thunderstorms under such a picnic table, and I would have been in sad shape without it, even though I had a rainsuit. Yet very few bikeways offer covered shelter.
Cyclists also eat more often than motorists.
Providing food for cyclists can be quite profitable if there is enough traffic on the bikeway. On the Petit Train du Nord, in Quebec, there were actually more places to buy food along the bikeway than along the highway because motorists drive hundreds of miles without eating while a cyclist is never going to travel more than a couple of dozen. I saw at least one cyclist with camping or touring gear for every mile that I traveled on this bikeway, and the non-touring cyclists were too frequent to count. Cyclists need places to camp. Bicycling is frequently an activity undertaken by those with small wallets, such as teenagers and students.