Now what do you give me in return?
What can I do with a bitcoin once you have transferred it to me?
I think the idea is you can then exchange the bitcoin for goods/services/fiat currency etc, the same way you would exchange a $100 bill for other stuff.
I don't need to be able to
do anything intrinsically with the bitcoin or the $100 bill (i.e. I can't eat or drink either of them) for them to have exchange value.
Gold always was wanted because it looks great. People like to wear it and touch it. When I exchanged something for gold I received value.
The Dollar only had value because government forces us to accept it. If I exchange something for dollars, I get government guns to make sure it will buy me goods
Now what about Bitcoin? Why Exchange Something for Nothing? If your answer is because you can transfer Nothing cheaply let me tell you this:
Incurring a cost (something) for transferring nothing is a waste not a benefit. You can exchange back to fiat if you want to spend it at places that only accept fiat. or you can spend it at places that accept bitcoin.
Try sending money from one country to another (wire, western union, etc) within one hour and for a tiny fee. You won't be able to.
You can seem to be claiming bitcoin has no use, whilst gold has a use "because it looks great". I suggest you read some articles about potential uses of bitcoin (its a very long list) before launching off into "bitcoin has no value" tirade.