The biggest problem is that most people don't have a clear mindset about who their "enemy" is. Who they want to hide from.
Is it really a huge problem for them that the online shop ABC won't accept their payment?
Or is it that the government's agencies will link the Bitcoin to them and see that they haven't paid taxes and catch them.
Because for me it's clearly the fear of the latter.
It's a bit of both: I'd love to have more privacy, but despite privacy being a human right, governments want to know an ever increasing list of things about you. I can't avoid that without breaking the law, so compliance is the safe route. For OPSEC and $5 wrench attacks, it would be the opposite. I also know our tax agency has many employees, and doesn't really keep track of employees snooping around in electronic records. So anything you declare increases a real risk. I can't wait for them to specify registering all Bitcoin addresses with them. Or maybe even private keys.