Not true in the US:
http://www.ij.org/index.php?option=com_content&task=view...At the state level a whole bunch of rent seekers have created licensing etc. hurdles for innocuous things like interior design and flower arrangement (two current areas being litigated). There's been talk off and on about doing this to programmers, although that doesn't look likely any time soon.
And then there's this atrocity: http://www.ij.org/index.php?option=com_content&task=view...
"Texas now demands that every computer repair technician in the entire state acquire a private investigator’s license to repair a computer."
