Why is making money so important?

Sorry I know this question sounds stupid but I'm genuinely trying to figure out the purpose of adulting. Like why is that working and earning money is so so important. This life quest is so difficult to understand, especially when you have no adults in life growing up to guide you in life. I feel lost in life than ever before. I just seen this trend like go to college and secure a job or work some crappy job your entire life. Either one way or another, the purpose is to earn money to surirve in this world. Otherwise you'll end up in the streets homeless. And majority of peers are already settled despite they are only in the 20s. Have secured a proper job, some moved abroad, half of them engaged and some already have kids. Point is they figured out the purpose of life. Meanwhile I'm still living in 2016 phase.