North Africa is has a much greater exchange of population with Europe thus such aids are more readily available.
Travel in Southern Spain and see the hundreds of cars loaded to the axles carrying everything including water as the make for the Ferry across the Straits.
Sub Saharan Africa is peopled, by and large, by poorer, less educated and more isolated citizens which have been engaged in almost constant wars for fifty years, that could be a possible explanation.
That’s the silliest explanation I’ve heard.
You’re telling me that people in Sudan and Mali are ‘close to europe?’
The best explanation, is that condoms are useless at preventing AIDS because they increase risk taking behaviour. Take condoms out of the picture and AIDS transmission actually drop as people change their behaviour. Don’t sleep around, don’t cheat on your wife. It’s really simple.