You would be wrong in your assumption. A project I worked on for a client (data scientist working on labor market issues) wanted to know when he would run out o

You would be wrong in your assumption. A project I worked on for a client (data scientist working on labor market issues) wanted to know when he would run out of candidates in the labor pool as he had a high turnover in 120 zip-codes. Out of them only 30 would have a dried up labor pool in 15 years. The rest could go on forever. Why? You forget to count the people aging, the 15 year old who isn't in the labor pool now, will be in a few years.