For me, it reads like old people doing old people things. Let’s see how it plays out.

Likely nobody gets fired. The put old employees in so called “Altersteilzeit” or replacing 40 h contracts with new 35 h ones. So that net. 1500*35h are saved

Well random age limits are all over. For Voting, Working, optainig the driver license, drinking, being out late, You name it.