What is the big deal if bitcoin is young and just exist for at least 10 years? There is no big deal on that since bitcoin has a great and advanced technology while gold is just a precious metal with a price on it. Gold is an old fashioned way of storing value while bitcoin is an advanced asset which it can help you to gain more interest on your money compare to the traditional assets like gold.
both are just backed by supply and demand, Gold have limited supply same with bitcoin. those two are great assets no need to compare it I think. Let's just accept that bitcoin and gold are two great asset, but in this today's world bitcoin is inline with technology so I think using bitcoin is more applicable in our today's society.