If people learned personal hygiene in diaspora, then diaspora did you and some of us here a big favor. Even in that diaspora, there are sensible Kenyans who did not learn hygiene there. So some Kenyans have issues, maji itawafikia, check your history, before the majuu was made cosy for you, some dirty people had to build it. An African saying (Nigerian) says

'a lizard in Kenya will not become a crocodile in majuu'

Some Kenyans majuu are lizards and some are crocodiles, same here, lakini in Kenya, you will find the real Kenyan crocodiles. Actually the most important/wealthiest/influential black people to majuu are in Africa. Obama we call a 0.5 here.