I'm not sure you can explain why bitcoin is better than gold than just comparing the two in terms of value and the potential profit you get. Bitcoin is a non-physical investment asset and also a means of payment, but bitcoin users must comply with the laws that apply in certain jurisdictions because the legality of bitcoin still varies from country to country.

Gold is useful anywhere even without the need for internet and electricity, but you may have trouble using bitcoins when you are not connected to the internet, especially if you don't have the skills to use them in other ways. In some places bitcoin is still useless especially if there is no internet, meanwhile gold has a real function as a means of payment that has been used for centuries.

That's the opposite of what you said before. Should if bitcoin really is better than gold, then holding gold long term doesn't make sense. You said one shouldn't sell their gold to invest in bitcoin because of the risk, so gold is much better than bitcoin in terms of the risk involved.