I think it would be an improvement on the present, simply because what exists now is that people have certificates and then are told they are not permanently valid. Some officials have told them that yes, they are permanently valid, but the law says they're not permanently valid.
If it were changed, then if you made the application before turning 28, you would get a certificate, but all certificates would then be permanently valid. There would be no such thing as a certificate that is not permanently valid.
Now you have—and we use a rough guess—30,000 people who have received certificates, but they're not permanently valid, and these people will be turning 28. Every year there will be a couple of thousand. Some of them will apply for retention before they turn 28, but some of them won't; they'll just go undercover and continue with life.
I think it would be an improvement if it were reversed so that if you don't apply, then you lose your right to apply at age 28, but if you do apply, then your certificate will be permanently valid. I'm sure there would still be problems—people would come along and say they were 29 and didn't know about it—but those cases would be easier to deal with than they are now, when people say, “My certificate looks good.”