North America has gotten off easy by pushing the training onto pilots themselves.

If banning leaded gas leads to qualified pilot shortage, the industry only has itself to blame for failing to train the people it needs.

Lufthansa at least (and maybe most big euro flag carriers?) runs its own “ab initio” training, where it takes non-pilots and makes them into pilots with a job.

Lufthansa has warned cadets they won’t need to hire for a few years: https://www.businessinsider.com/in-crisis-lufthansa-restruct...

Not sure if there’s a shortage of skilled pilots today as flight counts are still down like 20% in USA vs 2019, and generally a sharper decline elsewhere.