Why are Sasha and Malia more important than John Paul and Mary Catherine

I find it funny that Sasha and Malia are more important in the world than my kids or anyone else's kids.  True the Sidwell Friends school has always had armed guards and when I was at Andrean, Dean Barancyk carried a gun.  However, that was a private school near Gary so things were different perhaps.  But why do those two brats warrant the need for safety when other kids don't?  I am just curious as the brats will never have any worries unlike my kids.  My kids will struggle, Mary Catherine will have to deal with the consequences of Obamacare but the brats will not.  I want the brats to have to suffer the consequences of their asshole father's decisions.