It won't happen in that way, because reality likes to defy predictions, but that's the general direction we're heading to.
My take: it won't be something everybody does (unless provided by some service, which looks illegal at least under GDPR) but be prepared for extensive profiling by whoever really cares about doing it.
That's probably an accurate take. I agree, your average internet user isn't likely to configure their devices to do such things. It will be the domain of techies, oddballs, and assorted edge-cases (eg: someone who wants to avoid the law, mob, stalker, etc).
My take: it won't be something everybody does (unless provided by some service, which looks illegal at least under GDPR) but be prepared for extensive profiling by whoever really cares about doing it.