I’m not sure about that. Millions of people get on a plane or hot air balloon each year and are no longer on earth until they land.

If you mean go into space then it depends on the definition of space. The international standard would list 655 people. But by the US definition there are more (mainly military aircraft personnel)

I think it’s a shift in the definition of “being loyal” to mean “I’ve stayed with you a long time” when it actually means “ I feel a bond that means I stay with you even though you have faults and I trust you”