I don't think you are a hippy. From evolutionary perspective alone, it seems reasonable. However, US society in particular has been.. complicated for the past few generations.

I used to attribute it to the individualism ethos and whatnot, but I no longer think that is a reasonable take in a sense that it is not the whole story. There is a steady flow of push to separate individuals from one another. For example, it is not unusual for parent to offer a sentiment along the lines of 'you are out at 18'. And this is just one tiny example. The funny thing, there may be a merit to letting a bird fly out, but we are talking about concerted efforts to push birds out while outside is set up to be as anti-bird as possible. Not exactly a recipe for success..