A huge problem with public transportation is safety and usability for small children, the elderly, and people with disabilities
Probably because all of them can drive. Sarcasm. You just named all groups that will not get driver license. Expecially children and disabled.
They have problems with having to wait standing and constantly out of order escalators and elevators.
Everyone have to wait. Everyone hates standing. Maybe just do proper benches, maintanance of escalators or remove steps? Well, probably Germany don’t have problems with last one.