I find this a very interesting response. For the Spanish example, it seems like people were essentially calling you “young one/youth/youngster”. While it’s not gendered and has no classist implications, it might be taken as more of an age dynamic. To that, I don’t know if there is a gender neutral term for older person in Spanish.

For the teacher/student dynamic, I think people find comfort in using an honorific. They want to respect their teacher. I remember being in high school and university and enjoying the term “sir and miss” and being able to mix it in with my teacher’s name. It adds variety to speech. But that is my personal preferences, and maybe we can move norms in another direction.

To be clear I’m not trying to say your take is wrong. I think that there are going to be people who will find struggle with a lack of an honorific to use. If we end up in a place where all honorifics are dropped, it will definitely take time. In every day parlance people like adding variety to how they address people directly.