There are a lot of retired people in the UK who are living off them at the moment, they were only really phased out for new entrants about 20 years ago, and for

There are a lot of retired people in the UK who are living off them at the moment, they were only really phased out for new entrants about 20 years ago, and for a lot of people they were able to continue to build them if they were already part of one. So it's going to be a long time before all those people, both retired and not, are dead. Plus the public sector in the UK still offers them.