That it's foolish to have your genome in a database because there is no guarantee with regard to how that data may be used or misused in the future, or even who will own it.
In contrast the US and Europe have purchased testing by volunteers at levels that beat the military and approach involuntary state programs.
Or Name... because someone might misuse it.
https://www.nytimes.com/2020/06/24/technology/facial-recogni...
The implications for misuse of genetic information are even more serious.
Such as?
The thing people don't realize is that laws are highly ineffective against this sort of thing... as machines and algorithms are fed data and made to output numbers ... even the implementers don't totally understand what exactly is leading to discrimination.