[Tomte]

For the same reason we disallow indentured servitude, even if the poor guy would „really“ love to „work“ for the other guy.

For the same reason we disallow duels, even if both parties feel it would be a great way to settle a dispute.

[thedevil]

Do you think Google requiring use of my personal info in exchange for free services should be banned for the same reason as duels?

What is that reason exactly? I don't see what the two have in common.

[Tomte]

Ordre public (public policy).

[thedevil]

So are your norms and morals offended enough to justify banning such a business model that requires opt-in?

Is this the basis of our disagreement?

[Tomte]

This is not about my personal norms and morals, but about those of the society I live in.

Unlike some Internet and Silicon Valley types (who always seem to lean ultra-libertarian), I like living in a society. And society has a fabric.

This discussion is a bit like the one about minimum wage. You probably don't like it. Many people ("society") do.