Most african countries are very protectionist of their safari/hunting industries.
In SA you can do Pro Guides courses that'll have a dangerous animals / weapons element, but that does not make you a PH. You can also hunt on Private land at the owners behest, but that will not make you a PH.
The only way I know that you can become a PH, legally, when you are 16-18 to move to Africa and then become a citizen of your choice of country - then do a course if you wish but better is to strike up a relationship with a safari op/owner.
I was doing my Professional Learner Hunter/Guides in Zim (which includes a 2 year apprenticeship) but I was unable to write my learners exam because I held British Citizenship and not Zimbabwean. My colleagues (
Doug, Bruce, Jim,
Daryl) all wrote their exams and then worked as PHs or PGs in Zim until the farm invasions - then they bombshelled - some in the UK, some in SA, Oz and one even ended up in Alaska! Jim goes back to Zim every year to renew his PH licence but he is now working in the UK., anyway...
You'll work for a year or two doing every shit job around camp and chasing after clients 24/7. 26 days on - four days off and all for food and board and very little cash. Well that's how it went in the "good'ol days". What I'm saying is get your ass to africa, be prepared to work for nothing and somehow "organise" citizenship of your host country. SA is a bit Disney - rather go for Tanzania, Angola, Zambia, Zimbabwe etc.