Can I set identical Password on all of my apple devices

I don't know the technical answer, but the common sense answer is don't do it.

If your password is hacked/discovered, it will give the hacker access to everything you own.

Bad choice, in my opinion.

Yes you can, if you like.

trangeio wrote:

Can I set identical Password on all of my apple devices

I see no issue.

Sorry, I'm not used to your system. I meant for my reply to go to the original questioner.

Maybe with practice, I will improve.