People want something for free when the service offered does not have enough value for them to pay for it. The whole economy of startups is somewhat delusional and in a sense bubble (if you ignore advertising). Having success for giving away something for free is not a measure of economically viable success. If you add up what many startups request in monthly fees, almost no one will be willing to pay that sum.

Many people also couldn't possibly pay if they wanted. Most people don't even have the discretionary salary to pay for a few non-essential services per month, let alone dozens or hundreds.