The _entire point_ of Unicode is to be _universal_, you're just suggesting we go back to pre-Unicode days and use different code-pages. This, for reasons state

The _entire point_ of Unicode is to be _universal_, you're just suggesting we go back to pre-Unicode days and use different code-pages. This, for reasons stated in already posted responses, and to put it mildly, does not work in international context (e.g. the vast majority of software written every day).