>But if we don't have a good privacy protection legislation, is it possible in the future that you'll be asked for an inspection of your brain?

I can already see this kind of thing being abused at border crossings. Borders seem to be a no-man's land, where civil liberties are concerned, so even with privacy protections, I'd expect them to not apply there.

Extensive training and adjustment is required to use this, and that will likely always be the case.