#Wikidata - One size fits all but only size 47 serves me well

When a Wikipedia decides on its policies; in the end it is a "one size fits all". It is the policy wonks who decide and all editors have to abide by it and all readers suffer the consequences. Shoes are made for walking but you only get the best mileage out of shoes when they fit.

When you look at the categories for different Wikipedias they are not the same. Some explicitly exclude the standard information of other Wikipedias. As a result there is no universal standard and this is detrimental to readers who frequent multiple Wikipedias.

At the same time, a Wikipedia community may define its policies and practices as they see fit. This does not mean that they define what individual readers actually prefer only what they get presented. The amount of categories in use and their structure is a good example how editors define information given or withheld from readers. Increasingly the combined information from categories from Wikipedias find their way into Wikidata. When a Wikipedia does not include a category, by using the definitions for a category it is possible to present many if not most of what a category could have been.

The question is not can we show what articles of a Wikipedia would be in a category, the question is if our readers will be supported and if not what arguments we have to disallow readers the structures they personally prefer.
Thanks,
      GerardM