[PeterisP]

It's difficult to make regulation for a specific line that actually does disallow tracking without leaving loopholes and does not put weird restrictions on everyone else.

However, governments (at least some) are trying; GDPR is a step in that direction, but it has ovious associated difficulties have been discussed here in HN for years; California is moving in with similar laws, so there is a trend, but it will take years for it to get anywhere. I'd guess that EU will make "GDPR v2" (however that will be called) with severe restrictions on tracking by 2025 or so.

[intricatedetail]

This could be combined with banning ad targeting. So even if companies collected data, they wouldn't be legally allowed to use it.