Stay away from 23andme if you have any privacy concerns. I've worked with providers of DNA insights and advice that don't build their revenue model on selling your data. For example DNAPal.me
They do not sell your data; Facebook and Google also don't sell your data.
Your DNA is worthless[0] and impossible to hide. If someone did want your DNA there is nothing you could do to stop them. You leave it everywhere you go.
[0] except to your children you don't know you have
Yeah, but why not support companies doing "the right thing" and nudge the trend towards companies that respect and preserve the privacy interests of their customers.
I really wish there were more outlets like how for the legal/news junkie circuit we have things like MeidasTouch or whatever its called and the other YouTuber journalists (they deserve that umofficial title because what they do is top shelf journalism or at least investigative YouTubing.
Your DNA is worthless[0] and impossible to hide. If someone did want your DNA there is nothing you could do to stop them. You leave it everywhere you go.
[0] except to your children you don't know you have