There's multiple layers to this question:
Yes, even sporadic activity can count as a trade or business, if there was an intent to earn a profit. Since a 1099NEC was issued my first question would be is this the norm for the industry or should you have been considered an employee?
If you claim you weren't doing this for a business purpose, the IRS could rule you were an employee and come after your parents for the employment taxes they should have paid for you as an employee.
You might find this article interesting:
1099 Independent Contractor vs Employee [Updated 2020] | AutoDetailGuide
