Link to relevant policies
Nudity and sexual content:
https://support.google.com/youtube/answer/2802002?hl=en&ref_topic=9282679
Child Safety:
https://support.google.com/youtube/answer/2801999?hl=en&ref_topic=9282679
General Content policy:
https://support.google.com/communities/answer/7425194
Link to reporting options
Report inappropriate content:
https://support.google.com/youtube/answer/2802027?hl=en&co=GENIE.Platform%3DDesktop