Why did the man want to go to Africa?

W: You’re leaving Brighton! But why? What are you going to do?
M: I’m going to Africa. I’ve got a job as a doctor with a medical team.
W: What ! You’ re joking !
M: No, I am not kidding, Rosie. I’m going to miss you very much and I don’t want to end our friendship.

W: How often do you have your hair cut?
M: Usually twice a month. But when I’m busy, maybe once a month.
W: Do you go to the barber’s?
M: No, my mother sometimes does it. And my brother does it for me, too.