If their job is to be an representation of the local government then they can not at the same time represent other values like religion

Of course they can. Human beings are not lumbering robots with a binary set of attributes that can be turned on or off. And guess what? They do. All the time. Teachers turn normative, give normative rants, take sides, express their preferences. Both at the high school and the university level. Social workers express their own political opinion in conversation with the socially weak while regretting that they have no choice but to follow the rules, even if it means the person's homelessness or lack of necessary help. And when have you ever seen a neutral or objective lawmaker, or journalist, or even doctor? Everyone has the right to freedom of thought, conscience, and religion (three concepts that are legally bundled together into the same paragraph the European Human Rights convention and the Universal Declaration on Human Rights) simply by way of being human beings. You can't remove that from the equation of being a human being. It is time to accept that such things, religious or not, happen over and over again in society, it is the reality of having a society consisting of humans. People desire very much to blame hats and religious people like there's some kind of special place. I'm sorry, but there is no way I can consider that a rational, non-discriminatory position. The good news is that people in public offices actually do manage to put their personal position aside and keep the rules. That's my experience. Social workers, for example. Maybe it's because I live in Denmark, which is a stable society with a high level of social trust. But that kind of thing is possible. There are checks kept on these kinds of workers and they have to deal with rules and laws and not much else, so religious or not, this is a basic reality of their jobs. I don't think there's any reason to think that society gets any more secular by "cleansing out" religious hats. There are more important things at play, and they don't have anything to do with hats or other religious clothing. Such as: How does a person who is religious deal with working in a public sector job that may require them to do things that they may see as contrary to their religion? I have quite some experience with religious people, and the ones who actually keep working these kinds of jobs and do not either leave by themselves or get fired are, rather than deserving to be demonized as a "special case" of lack of neutrality (not true!), people we should complement because they're already separating things quite well.