Earlier quoted context omitted.
I'd put it a bit differently. If I were designing headphones for my own use, would I have them collect personal data and then give that data to somebody else . I like collecting statistics about myself, because they are interesting. For example, tracking exactly when I go to sleep, start my commute (pre-corona, that is), go on errands. But that is data that is for my use, and not something that I would trust in someb…
Would you store the personal data in "the cloud" (i.e., remotely accessible shared computer)
Partly, that is because I've been coming to the conclusion that the privacy promises of a company are rather meaningless. In the case of bankruptcy, collected data is treated as an asset, rather than as a liability to be disposed of properly. In the case of acquisition, the database gets transferred to a parent company. For example, with Google buying Fitbit, they will have have access to all data collected by Fitbit. Though (as of yesterday), Google is stating that they don't intend to use this for advertising, I don't trust that not to be "accidentally" merged with google tracking ids in the future.