Why?

Well yeah especially when its normies. Tell them once they already used the app awhile

promoting nostr is like promoting http 🤣. I tried to promote nostr (as a protocol) to my friends a few times and they had no interest. But when I suggest some apps, they click (using it daily is a different matter haha)

Most people can’t comprehend Nostr

Maybe advertise Nostr as a protocol to devs and specific apps/clients to normal people.

Also because they won't fit on the phone.

sounds like a plan