I despise lawns and plan to get rid of mine.
That said, Kikuyu grass is not without its virtues.
Firstly, it's cheap. Yes you need to mow it but that just takes time, not money.
Secondly, it's better than dirt. You can walk across it when it's wet without getting dirty.
Thirdly, you can see snakes on short grass. This was a huge advantage for most of Australia's history.