Because they need a new phone? What a strange question.
Why would 5G make other phones obsolete? They work just fine?
Personally, along with most other people, I have no need for 5G. 4G will serve me more than fine.
It’s not a “strange question”, it’s simply a question...seeking thoughtful responses. Your response doesn’t meet that criteria. What a strange, lazy response.
Thanks to (most of) the rest of you. Diverse, thoughtful answers.