They teach kids to say "zee" when doing the alphabet too now![]()
At first I started teaching my kids with Zed until I realised that would be a disservice to them when they started school, so quickly changed to Zee for them until they were old enough to understand dialects and different versions.
It was amusing listening to kids early on. They might not have understood difference between British and American English, but from an early age they would say a sentence to me using "settee" and then in the next sentence talk about the "sofa" to my wife.

the first time the muck it up. you are only starting with sound and simply words like