I'm just going to throw this out there, as this idea has not been refined. Here is an example of my idea. A certain fighter of mine has a son, who then joins mma tycoon. At creation he gets a small skill bonus (like maybe 5 to 15% random and possibly including hiddens). This skill bonus could also be determined by the skills of the father. The better the fighter of the father, the better he can teach his son.
This would be like in the real world, where a child growing up being raised by an mma fighter will very likely start his training at a very young age as a child, knowing nothing but mma, compared to a child growing up with out a mma father, who may not be introduced to the world of mma until his late teens, or because of a lack of guidance joins a Tae Bo class thinking that he's learning how to fight, because he didn't have any parents who knew better.
Take me for example, I didn't know about mma until I was about 22, and in my mid teens I joined tae kwon do. By the time I actually got interested in mma it was really to late to join a mma class (because of financial issues.) Had my parents known about mma, they would have started me in mma classes instead of tae kwon do.
This could be a rare event. Something like how once in awhile someone gets a message that's let's you know the iq of one of your fighters. Maybe on somewhat rare occasions you may get a message stating that one of your fighters has a son that's ready to join mmatycoon, and then would provide you a link to the fighter creation screen.
Take my idea and modify it to best fit into mma tycoon, but don't reject the whole of it