What I mean by this is your privacy, or the data you give away, is more valuable than what you get in return and the demand for your data will only increase over time. It may come to the point where you won't have a choice but to surrender it.
What will the future of privacy look like?
Eventually, it will be possible for humans to connect their brains directly to the internet. In exchange for your "thought privacy", your brain will have access to unlimited knowledge. If this ever becomes a reality then you may not have a choice to surrender your "thought privacy" as not doing so would mean that you're at a disadvantage over everyone else that chose to do so.
As technology progresses, the tradeoff for your privacy/data will become increasingly appealing to the point that it may no longer be possible for you to refuse it.