jonG wrote: And since money has pretty much taken over the world,
Money has nothing to do with it.
If you were alive 25,000 years ago, at the age of being an adult you would be expected to perform some role in the community. This would require you to leave your parents home and go gather or hunt. From this labor you would then trade what you created or harvested for other goods or services.
The only thing that has changed in 25,000 years is now you get paper or digital currency in exchange for doing something productive to help the community.
At only 18 the expectations are very low. You don’t need to do much. Get a job at a fast food place. Get an entry level job stocking shelves at Walmart on the night shift.