No one is forcing you or anyone to use bitcoin, or nostr. You are free to not use bitcoin, as you are free to not use the internet, internal combustion engines etc.

Everything on #nostr is voluntary.

If you don’t have bitcoin, and don’t know how to get it you could ask here.

Tag the #plebchain , #zapchain, #grownostr , #introductions hashtags and you will find very friendly and open folks who will show you how to get started.