How come they take loads of student girls over to build those schools in Africa?

I know so many people at Uni that wouldn't know a brick if it tickled them on the face, but who have been strangely chosen by some bonkers charity to go build a school in Uganda.

Surely you'd go for BTEC people? Burly young blokes who work in manual labour anyway, as opposed to some sexy 20 year old drama student from Cambridge?

What's the deelz?