I would recommend investing in both of them. One should invest in Bitcoin for its fast growing nature and investment in gold must be made for its stability and universal acceptance. This diversification will keep your investment safe and will reduce market risks at the same time.
I think it's okay to use both for investment. After all though one of them may be the price can drop other prices does not mean also will go down. This can be a helper for your investment if one of them has a falling price and this would be a double advantage if both prices go up
Well, I have the capacity to invest I will do on both, gold require a decent money since you also have to protect your investment
to make it secure and you will be able to sell it in the future. Your life at risk if you do not have a good security.
On the other hand, bitcoin investment is safe since we can always hide it and people will not know we have a good investment on it.