people not to stop focusing on making "companies" or brands.
If you want to screenprint some shirts for you and your buddies, great. Go for it, have fun and go crazy. Do NOT however advertise it as a company, add "ltd" or some stupid shit like that to that end of the name, or do anything that makes it sound like an established brand. Don't make team edits, a team website, or any of that stupid stuff.
Most real good, quality clothing companies come from people sitting down and doing something because it fulfills their needs or what they want, and grow from there. They don't spend 6 weeks designing a logo, building a team and website before realizing they don't even have a product.