Mentioning previous answers is intended to be a starting point, not to discourage further discussion. Followon questions, info, and debate are welcome.

The FAQ has a section titled "When did people begin shaving body hair and how has this been perceived by different societies?" at https://www.reddit.com/r/AskHistorians/wiki/dailylife#wiki_when_did_people_begin_shaving_body_hair_and_how_has_this_been_perceived_by_different_societies.3F . There are currently three answers, with authors /u/sunagainstgold , /u/chocolatepot , and /u/Georgy_K_Zhukov (nice bibliography! well, not "nice") and kieslowskifan on pubic hair.