We are a commune of inquiring, skeptical, politically centrist, capitalist, anglophile, traditionalist New England Yankee humans, humanoids, and animals with many interests beyond and above politics. Each of us has had a high-school education (or GED), but all had ADD so didn't pay attention very well, especially the dogs. Each one of us does "try my best to be just like I am," and none of us enjoys working for others, including for Maggie, from whom we receive neither a nickel nor a dime. Freedom from nags, cranks, government, do-gooders, control-freaks and idiots is all that we ask for.
Beneficial. It's the own person's information and if there is a cheaper way to access it, why not? Can always take those results to a doctor for further help and information.
For example, I just saw an ad for a blood test you can do for $199 that will test you for 90+ food allergies. This is an IgE blood test my relative took almost 30 years ago...it was considered 'kooky' at the time. But it gave him serious help with life-long skin allergies.
Now it is available cheaply for the general public. No need to convince your doctor that it is a useful test. You can try for yourself. Nothing wrong with attempting to diagnose food sensitivities on your own if other means have not worked.
It's likely to cause a lot of anxiety and superfluous medical procedures if most people get access to an interpreted full DNA profile.
Everyone has miniscule risks of dozens if not hundreds of genetically triggered conditions, and each and every one of them would be listed.
For those without the intellect to interpret that as what it is, statisticall chaff to be ignored, it's going to lead them to think they are suffering from all of that and nobody just noticed yet...
That's a serious enough problem labs would need to be very careful with disclosing such things to people.
And without disclosing such things, there's little use for the data, is there?
Except for those wanting to use their genetic heritage to claim government handouts because they're "0.001% Cherokee and 0.03% black".