Not GP, but personally I do not mind. I have voluntarily shared my DNA information with a number of people.

Health insurance is not important here (UK), and life insurance is much less of an important concern to me as I will not have children. But I can see why if that is not the case, you would be more concerned.

I do have some concerns about it being used by the police, though public availability is unlikely to make a difference there. I've never committed any crimes, but the police are known for using scientifically and statistically invalid methods to prosecute.