It is unnecisary regulation that in many cases is being ignored. It is a tier of burocracy that is not needed and is expensive to opperate for no real benifit.
Remove the limitations for a qualified trades person to perform DIY jobs around their own homes without first having to apply for an expensive licence to perform the task.
eg Part P of the Building Regulations that limit electrical work in the home. A qualified electrician can work for their company quite legaly during the day….but if they wish to do the same work at home they are breaking the law.