Parents give children a name for whatever reason THEY choose. Whether it is after someone in the family, someone they loved or they loved the name. NO ONE has the right to disrespect that. If a person likes their name and chooses to use it whether it is their first or middle name, no one has the right to disrespect them and “change” it for them. If a parent gave a child an English name for whatever reason they chose to, and that child was called by that name all their life, only THEY can decide to make the switch to their hebrew/yiddish name and no one else has the right to do so. A teacher can say “you have a lovely Hebrew/yiddish name, may I call you that?” and if the child agrees then thats ok, but if the child says “I’ll think about it or I would prefer if you just call me what everyone else does” then that’s it.
Names are personal and you don’t just take it off and become someone else to please another person.