why nobody has visited the moon after more than 45 years? reasons are depressing

Do you know why nobody has visited the moon in more than 45year..... and the reason are depressing.
Last time a person visited the moon was in December 1972, during NASA's Apollo seventeen mission.
Over the decades, NASA planned to send people back to the moon but has yet to sucsseful.
Astronauts said may time that the "biggest reasons why humans haven't returned to the lunar surface are budgetary and political hurdles"... "not scientific or technical challenges".
Blue Origin, SpaceX are private companies and may be the first entities to return people to the moon.

The landing 14 people on the moon remain one of the NASA's greatest achievements, if not the greatest.

The researchers and entrepreneurs think a crewed base on the moon could evolve into a fuel depot for deep-space missions, lead to the creation of unprecedented space telescopes, make it easier to live on the Mars and solve longstanding scientific mysteries about Earth and the moon's creation. "A lunar base could even become a thriving off-world economy, perhaps one built around lunar space tourism."

A permanent human research station on the moon is the next logical step. It's only three days away. We can afford to get it wrong, and not kill everybody," former astronaut Chris Hadfield recently told Business Insider. "And we have a whole bunch of stuff we have to invent and then test in order to learn before we can go deeper out.
"But many astronauts and other experts suggest the biggest impediments to crewed moon missions over the last four-plus decades have been banal if not depressing."