It has been ages since anybody has been on the moon(47 years?). Why is it so hard to do a moon landing? Is it just

Question: It has been ages since anybody has been on the moon(47 years?). Why is it so hard to do a moon landing? Is it just expensive?
- Keywords:
  Moon,
  Moon landing
Asked by ROYLE to Dominic, James, Kevin on 16 Mar 2017.
- Dominic Doyle answered on 16 Mar 2017:
  
  It’s no longer considered “hard” but it remains very expensive, and then you need a strong motivation and commitment from the public, politicians and governments to do it.

Question: It has been ages since anybody has been on the moon(47 years?). Why is it so hard to do a moon landing? Is it just expensive?