If shifting is real then why aren’t we all leaving this reality?

First of all I’m not a native speaker so I’m sorry if I made any mistakes while writing this. 😭

As someone who has done mini shifting before, I’m not trying to say that shifting isn’t real or anything like that. But something I’ve been wondering is why don’t people who believe in shifting try to permashift. Most people seem to see shifting more as a form of entertainment rather than a purpose in life. They go there have fun and then come back here.
If shifting is real why don’t we all just go to whatever reality we want and live our lives there until we die?
I’m not gonna ask dumb questions like if shifting is real why haven’t all these scientists proven it yet. Because ik that obviously nobody would just go and telling people like hey guys shifting is real and you can have sex with whatever celebrity you want actually 🫩🫩

I have so many questions about this and I’d really appreciate it if someone could enlighten me 🙏🙏