I did it and then regretted it. Possible outcomes:
You risk getting linked to a crime because your DNA was found at the scene of the crime. You might even be innocent, but just having your DNA in a database increases your risk of a false conviction. Worse, you put your relatives at risk too, regardless of whether they are guilty or not.
Maybe you unknowingly got someone pregnant and now owe child support. Depending on your situation, you may not welcome this discovery.
Best case, you find out that you have a genetic disease that you can't do much about.
You risk getting linked to a crime because your DNA was found at the scene of the crime. You might even be innocent, but just having your DNA in a database increases your risk of a false conviction. Worse, you put your relatives at risk too, regardless of whether they are guilty or not.
Maybe you unknowingly got someone pregnant and now owe child support. Depending on your situation, you may not welcome this discovery.
Best case, you find out that you have a genetic disease that you can't do much about.