Watching a video on the history of floppy disks and some comment says kids would probably be asking "why is this man pulling out weird DVDs from a 3D-printed Save icon"
In ten years time even that wouldn't make sense any more...
I don't think anyone who used punch cards professionally is still working. we had to do a cobol assignment in the early 90's with cards, and even then they were ancient history. I doubt anyone was still using cards after about the mid-80's.
Do not recommend. But they really do give you an appreciation for a keyboard and monitor. Kids these days honestly take them for granted.