The heritage element is gimmicky to get folk interested. Plus they struggled to get FDA approval to sell it on the basis of health.
Surprised at the data fear given 23andme was founded by the wife of some Google big bod.
Of more concern is that you discover faulty genre mutations that have serious consequences not just for the testee, but for the whole family. Back up and support from these companies is bordering on non-existent. Expect to see NHS genetic services overrun by people unsure what the results mean.
So for example, your mum has the gene giving high chance of pre-senile dementia, which is hereditary and currently untreatable. Which continent you herald from isn’t quite as interesting. But you now might be able to start making care arrangements early…
Personally I’d rather ostrich.