Maybe you feel safe now because there's nobody knocking on your door or sending you letters but this may change one day. Now your government doesn't care but if Bitcoin ever hits 100k USD you'll not be a normal citizen. Bitcoiners will be seek as cash cows for some of the more corrupt governments.
If you are paying your taxes and following the law of the land why would any government targets you. The corrupt governments can manipulate things and with bitcoin you can have the financial freedom you are seeking away from the government if you want to, but if you are converting into your fiat currency make sure you pay your taxes.
All the government needs transparency from their citizens to have a complete control over them and privacy is a dream and hence i am sure we will not see any legal mixers.