What are the use-cases of that? Electronic identification most often makes use of smart cards. And so software that requires to identify a citizen securely (most often banking or government software) and let him perform some actions online, needs to read the smartcards certificate details and to digitally sign content – e.g. you digitally sign your bank transfer, or you sign your request for a government service.
I hope that more governments will go for electronic governance and use digital IDs (note: with the so called “anonymous credentials”, in order to ensure the privacy of citizens), and that browsers will follow and make it possible to handle smartcards without any hassle and without the need for 3rd party software.