Why am I being forced to file a schedule C form when I am not self-employed?

[xmasbaby0]

Did you enter a 1099NEC?   What kind of income did you enter?    

[MelindaS1]

If you received any income on Form 1099-NEC or 1099-K, that gets reported on Schedule C as self-employed income; even if you worked with a large company such as Lyft or Uber.

The good thing about earning "1099 income" as opposed to W-2 wages, is that you get to deduct all your ordinary and necessary business expenses incurred while carrying out this line of work: learn more. 

On the other hand, you do have to pay both the employee and employer's share of withholding taxes, known as self-employment taxes. Often this requires making estimated tax payments throughout the year. Learn more: FAQ - Self-Employed Federal Income Taxes

Note: the above does not apply if your 1099-K only includes sales from personal items sold at a loss, and other non-taxable transactions; learn more - Did You Get a Form 1099-K and Aren’t Self-Employed or a Small Business?