lol
You do the same.
I am all for young adults making their mark and leaving home, entering into the real phase of being a self-supporting adult.
However, I think you aren't seeing the facts of the world either. The majority of the world is either completely based on collectivist culture, or more in-between collectivist and individualistic.
The U.S. does oddly reign supreme in the individualistic culture world. Even other Western countries have more community-based cultures. We seem to strive for as little community as possible.
I won't ramble, but the strength of familial bonds are extremely strong in cultures that aren't as individualistic as the typical American culture.
It's funny too to see all these rites of passage in various cultures. I'm just glad that ours tends to not involve things like wearing a glove with loads of pissed off bullet ants in it, or various rituals involving piercings or getting burned, or any number of things designed to do little more than a thorough functionality check on your pain receptors.
"Congratulations, you've endured a good shot of insect venom. You're clearly ready for anything our culture can throw at you."
Yeah...not really. You've just proven that you can endure physical pain - or maybe you've shown conclusively that you're very allergic to bullet ant venom. Darwin++.
Here, if you have the ability to work retail and pay money to a landlord, congratulations, you can get your own apartment and move away from your parents. Bonus points if you have the ability to take on more complex tasks, such as exchanging money for goods and services. This would include things like a car. (Yay, another arbitrary rite of passage!) You may be a complete moron otherwise, but you have demonstrated the ability to place items on a shelf, as well as the ability to give money to other people.
Just like the bullet ant rituals, these rites of passage in our culture don't necessarily ensure that you'll do well in the real world, but considerable value is placed on them nonetheless.
And once you
do move away from your parents, it's not like you're self-sufficient anyway - unless you're into all that "survival" type stuff, you're still extremely dependent on a lot of other people. You're simply insulated by a layer of money, which is used to foster interactions with suppliers of various resources.
Move away from home, or don't. That should be for you and your family to decide, as is the decision on whether or not to adhere closely to your current society's ideas of expected behavior.