Is He Apt?

"For instance, suppose her dilemma is whether to give a particular morsel of food to a little child or a big one. The big one is likely to be more capable of finding his own food unaided. Therefore if she stopped feeding him he would not necessarily die." pg 125. This small passage in Dawkins The Selfish Gene reminds me of my family. My family is composed of my parents, my two sisters, and I. Since we have arrived at an age in which we like going out with friends to do absolutely everything, we therefore are constantly asking for permission from our parents to go out. They at first don't let us go out, but are rather precautious because they think at times we aren't able to take care of ourselves. After a while they loosen up a bit, and give us more freedom. In my house I am granted permission to do things almost always, after coming from a line of refuses to let me go out. On the other hand is my sister, who my parents don't allow to go out as much as they do with me.
.
What's clear about this example is how in my case my parents might now consider me to be more apt to be out on my own than my sister. They may know from previous experiences that I may know more than my sister because of our age difference. Since I have lived more, I may be more likely to survive alone than my sister would. Therefore my parents might feel they don’t need to take care of me anymore in some aspects, and so I get to go out. My parents’ feel of my sister may still be uneasy, since they might think that she is still not able to be on here own. Even though at times we may think we are being denied things because of dumb reasons, in co-relation to Dawkins statement they do it to prepare us much better for the future in which we may not be relying on them.