i think maybe in future bitcoin will better than gold, but now gold still better than bitcoin
They both have different merits and demerits, gold is more secure as an investment while it does not earn you too much profits in long term, while bitcoin is not as secure as gold is but it can earn you some great profits in long run, so they are both good in different ways.
Yeah both have their unique advantages so a person should choose according to his convenience, if he can afford to take risk then bitcoin is the best choice for him and if he wants to be safe then gold is the option.