What would it take to get Esperanto where it was at its height?

I found out about Esperanto earlier this week and it’s utterly fascinating. It also absolutely infuriates me that it never got to where it should have been in popularity. I’ve traveled the world a bit and I’m far from done but the thought of being able to talk to just about anyone would be astonishing. What would it really take to get Esperanto implemented in education systems at a young age and accepted as an auxiliary language? It makes me even more mad that people say Esperanto isn’t useful because it has no culture blah blah. The goal of speaking a language is to communicate effectively and I feel like saying that is a polyglot cope. I definitely do not speak it yet I can say maybe a few sentences, hell I don’t even know if I picked the right topic or not to be honest. Ive gotten off topic. I know there’s conventions held yearly around the world for it, do you think it’ll ever come to be as popular as it was? I’ve read that it’s not difficult to learn for people who speak English, or a European language but could be difficult for someone from Japan, China or Korea. Can anyone attest to that?