There is a proposal of
healthcare=midwife tag in its voting stage. This proposal says, that "a midwife practice" is something self-explanatory. But this is a good example of bad tag design and here is why.
I understand, that majority of OSM members are men and only a few of them are medical professionals. So, it's hard to expect that they have a good understanding (especially, in a global scale, which is important since OSM is an international project) of specific healthcare services for females and healthcare services in general.
First of all, "midwife" stands for completely different persons in different countries and medical systems.
- They have different education level (from professional certificate equivalent to Bachelor's degree from a college or Master's degree from a university).
- In some countries they are a part of a regular medical system, in some - they represent an "alternative" medical system. There are, probably, countries, where private midwives do not have to have any formal education and they are, practically, witch-doctors.
- In some countries, like Russia, they are basically just a special type of nurse in a maternity hospital. In others, they can work independently and provide an almost full scale of maternity-related medical services. In some African countries, midwives are allowed to do Cesarians, which is unimaginable in the Western medical system, where only MD surgeon can do it.
It means, that in one "midwife practice" women can only receive simple counseling service, in others - they can give birth and so on. All the above means, that there is no common denominator for all these different "midwife practices" except it's something for women and it is maternity-related. It doesn't seem like a good base for a single tag. By approving this tag, we'll get another thing we can put on a map, but can't really use for any real case without studying different aspects of every national medical system.
Again, I understand, that for men place like that sounds too abstract to think about it in details, but it doesn't mean we should introduce and approve meaningless oversimplified tag using a lack of knowledge as an excuse.
It even makes less sense keeping in mind we already have (unfortunately, abandoned) Healthcare 2.0 proposal, covering every tiny aspect of medical services. Yes, "it is very complex", but there are several complex tagging schemes in OSM and nobody died of using it, while it describes medical services perfectly.