I had a paper license until I was 26- one of the last people to do so as, like wombar, they phased them out soon after I got mine. I had to get a photo licence when I applied for a provisional Category D entitlement so I could learn to drive buses.
Unlike wombar, I haven't been ID'd since I was 16. Though that's not much of a boast, because I think it's the baldness that gives my age away.
If you move house, or make any changes at all to your license, then you'll have to get a photo one then, with all the annoyance that entails. Otherwise, you're good until your 70th birthday.
I'm pretty sure my mum's had the same paper license since 1984.