This is very much like this in Australia. I had friends warning me against setting up my own pendant light because of insurance and other blabla and was denied to buy some electrical cables at the local hardware shop as I wasn't certified even though I hold a bachelor in electronics .... Compared that to France where I spent time at uni building my own guitar amplifier for my bachelor thesis, manipulating 300V-500V and blowing a couple valve along the process, ha fun time