This opt-in/opt-out is a false dichotomy in my opinion, because probably 90% of the population don't know this issue at all. So it doesn't seem to matter much,

This opt-in/opt-out is a false dichotomy in my opinion, because probably 90% of the population don't know this issue at all. So it doesn't seem to matter much, how difficult the opt-out mechanism is. Likewise, if you use an opt-in mechanism, practically nobody will opt-in, although if everybody could weigh the cost/benefits the result might be different. Which is fine, it would be a huge price on society if everybody had to educate themselves on these small issues all the time. This is an area where regulation is the best choice. As long as there is no law against it, I can't see how it google is in the wrong here?