Gold is a shiny bauble material, but never grows. It can be a good investment for that part that you want to put aside and will just sit. Bitcoin is invaluable for money laundering, but very unstable for saving/investing. Look at how many have been fleeced when someone gets their keys, or lost their coins by a hard drive failure. It is costly in electrical use to mine.

There are far better things not tied to the value of a dollar. I would suggest very low-fee indexed mutual funds as one better alternative. They offer an accessible way for people to get a share of the means of production. My experience is that for people who can can learn to not be ruled by fear or greed can, over time, build enough wealth to live better lives.