Well sure. I started a mobile auto repair business. That's a field that is rife with incompetents, junkies, and straight up scammers. It's the Wild West as far as businesses go.

Unlike most of the mobile guys in town, I went all in on the professional front. Had a webpage, business cards, uniforms, took CC on the spot or online, emailed pdfs of estimates, diagnostics, and invoices, etc.

By the time I wrapped it up, I had a huge roster of clients. Years later I still get calls. I did it simply by being honest and trying to make sure my customers interests were also my interests.

I turned down work if it was outside of my abilities, I never upsold, if I broke something I paid for it out of pocket, and tried my very hardest to not recommend any repair without solid diagnostics first.

Had I wanted to keep going, I could have easily hired a crew and expanded. Once your name gets out, there's more work than one person can shake a stick at. And expanding means transitioning from laborer to manager. Then it's on to franchising.

When you get an LLC, the banks will throw money at you. Even without collateral. What ever you are being offered in personal loans now, times it by 10. Show a years worth of growth and reasonable fiscal management and they'll give you a key to the vault. No joke.

So, yes, if you have a skill, you can do honest business and turn very little into a lot.