As I said, every major client has a "create account" button and sets you up with your first relays. If you can't click a button, you probably won't remember to breathe and so won't need Nostr anyway.

So yes, you just to to the play store and install an app. It's not December 2022 anymore. Try it.

The weaknesses of Nostr are elsewhere. Ego+network effect for one. A certain amount of slow jankiness with relays. Rapid client development and the ease of running into bugs.