Think about parents you know who have had kids of varying ages. Each child has his own personality, skill-set and approach to life, right? Yet, in an effort to be fair to each of your multiples, you can end up treating them all the same.
The "good child" ends up with the same number of restrictions and rules as the wild child. But that's actually unfair: One of your children may get his homework done without any prodding whatsoever, while the other has to be kept to a particular schedule to insure his duties as a student are carried out [source: Borba].
It's wise to start with the goal of having a fair-and-equal playing field, but then give yourself the flexibility to adapt to each child's specific traits [source: Swenson]. They're multiples, they're not clones.