I am 70 (male).
Since graduation, in the 70’s, I was able to gain my daily bread as a private designer (hardware/firmware) of various electronic controllers.
Thanks to KiCad developers, since more than a decade, my efforts to finalize my designed boards has been reduced greatly while getting better results.
Now, KiCad V5 looks great. But if I need to update a project done with BZR2356, I will have to redraw its schematics and layouts on V5.
After all, I faced a similar situation when I moved from EASYPC (on DOS, from UK) to KiCad.
My best wishes to all.