I could see how it could potentially leave an open door for bad things.

Google is a really big company, and they have a lot of money. How can you and I guarantee that they won’t sell our private information to insurance companies? If the fines for selling that data are lower than the money they would make from selling it, there isn’t much left to keep Google from selling it.

If they experience a big data breach, how can we know that that data will still be safe from bad actors? The riskier information doesn’t necessarily include things like what your hobbies are, but rather those weird health searches people make at 3am. They shouldn’t really have a reason to store those 3am “incognito” searches in relation to you. They shouldn’t really have a reason to save things like your speed habits in relation to you specifically either.

I know it’s practically everywhere, but some people still care a lot about those risks.