I was also thinking those free things aside the ones listed @spaceman {air, water, trees and on} would be kindness, love, forgiveness, friendship, happiness , peace and on. Google, tiktok, Facebook and more are business oriented if not from the beginning, at least for so many years now.
At the least of it, you need data to browse and that is cash.
And then subscription of one kind or the other.
Just name different ways that this platforms are doing their businesses making money..
Now all social media platforms can indeed be used to make money as long as we have the skills to use them and have unique ways that we can create to upload to them. Because with the many unique things that we can produce, of course there will be many people who want to visit our social media to see and watch the content we create. In addition, everyone can also use the social media platform to sell certain products in order to make money like on tiktok and other marketplace platforms because it can be done for free without having to spend a lot of capital at first.