So nobody has actually been to space?
No person. The voyagers are out in space though. Out past the oort cloud. https://space-facts.com/oort-cloud/
I think that counts as interstellar space.
https://solarsystem.nasa.gov/news/784/nasas-voyager-2-probe-enters-interstellar-space/
https://www.space.com/26462-voyager-1-interstellar-space-confirmed.html
The Tesla guy has.