[jsmith45]

It can depend in part on what you mean by make money, and what the purposes are.

If you mean greater than 0 revenue from YouTube, probably the majority of content creators that try to do so will. (There are people who simply use it for video sharing, and have no interest in monetization at all).

If you mean make a profit after paying themselves even a fraction of minimum wage for their time? Probably a fairly small percentage, although I know of plenty of creators who post content on YouTube more as advertisement for their main revenue source (such as streaming on Twitch, taking commissions on some form of artistic endeavor, etc).

In some cases the marginal time costs of putting a video up are negligible compared to performing the activity in the video, and the videoed activity was something they were going to do anyway. That can make doing YouTube profitable more easily, even if the activity in question is not profitable overall.

For example, somebody is going to spend 200 hours sculpting something (might be their hobby or perhaps somebody commissioned it from them), and they decide to set up a camera so they can create a time-lapse video of them doing it and upload to YouTube. In that case they only need to make enough to cover the time to edit the video together to make recording and posting to YouTube start to become profitable.