Its your business and your call. But my opinion is that I wish you would quit offering free services. I'm pretty concerned about the horrible effect your free services are having on education. Yes, AI can be an incredible tool to enhance education. But the reality is that it is decimating children's will to learn anything.
I don't want to blame AI for all the world's problems. And I don't want to throw the baby out with the bath water. But I think you should think really hard about the value of gates. Smart people can build better gates than cash. But right now, cash might be better than nothing. Clearly you have already thought about how to build gates, but I don't think you have spent enough time thinking about who should be gated and why. You should think about gates that have more purpose than just maximizing your profit.
"We want to hook as many people as possible without letting in our competitors" is a pretty crummy thought to use as a public justification.
(Edited for typos.)