It's a question often asked and there are various definitions of what a sugardaddy really is. But really, when it comes down to it, a sugardaddy is a man who engages in a relationship with a younger woman, where he is seen to be taking on economic benefits in return for the physical benefits a younger woman can provide.
The usual age where sugardaddy relationships take place is when a man is in his 40s and 50s and a girl is in her 20s or early 30s. These ages tend to be where a man has reached his full economic capability and a girl has the physical maturity to offer a man something his like aged wife cannot. However, sugar daddies are not always married and can be single gentleman looking for company.