You reckon?
Copies of birth certificates aren't always valid, and I've no idea where my original is because my parents lost it. Try getting security clearance for a job when you have neither a passport nor an original birth certifcate - it's a right pain in the ass. 23 years of paying tax and national insurance and suddenly I don't exist!
Bizzarely I can use the birth certificate copy to get a passport, which then, along with a driving licence, is sufficient to apply for security clearance.
If you don't drive and don't travel abroad in this country you're pretty much screwed, so you might as well give everyone an ID card anyway. I won't be paying for one though.