In most cases, you should be fine in learning from an ASL teacher in community colleges, a vocational rehabilitation program, or classes from your local community.
In others… it’s not, and here’s how to tell. Your life may very well depend on knowing this.
Learning from a TikToker? Youtuber?
Ask where they learned ASL from. If their answer is that they’re learning and wanting to teach others ASL, run far away. You should not learn ASL from an unqualified teacher. If you see multiple deaf individuals calling out a person for teaching dangerous or incorrect signs, this is another sign that you should run far away.
Do they have a certification from a local authority such as RID, for example?
If not, run away, as well. Not having a valid certification means that you won’t know if what you’re learning is correct and safe to use to communicate with friends, family and emergency services.
Important Questions and Why
Why is it so important to ask these questions, such as where they learned and if they’re a native signer?
The quick answer is simply that native signers will know when an incorrect or unintelligible sign is used and can correct individuals on the usage of such signs.
The darker answer is that your life may well depend on relaying accurate information to police, emt and doctors that may be working to help you deal with an illness, injury or other such life-threatening situations.