YOU will either ...
1) file a return to get back any withholdings and thus get the stimulus
OR
2) only file the non filers form to be registered for the stimulus
Either will get you the stimulus check.
Your parents should also do what they need to do if anything ... have them read the rules for themselves:
Didn't file a return in 2018 or 2019?
If you have a filing requirement and have not filed a tax return for 2018 or 2019, you must file a 2019 tax return to receive the payment.
If you are not required to file a 2018 or 2019 tax return, visit Non-Filers: Enter Payment Info Here.
