After Whitney Houston's death, her mother Cissy Houston and her sister Pat Houston, sought to put a stop to Whitney's daughter, Bobbi Kristina, from inheriting her trust fund; they feared receiving all of that money would cause her to follow in her mother's tragic footsteps.  However, after much discussion they have managed to come to an agreement.

When Bobbi turns 21 she will be given 10% or $2 million; 20% or $4 million when she turns 25; and the remaining $16 million when she hits thirty.  That is a smart way to distribute her money so that she doesn't spend it all at an early age.  

Source: inflexwetrust.com