There are lots of assets apart from bitcoin and gold that are still stores of value. Assets like :
Silver
Real Estate
Stock
Natural resources like oil
Collectibles etc
From either of them (including gold and bitcoin), choose the one you can afford to invest in and which you understand very well. You do not need all of these confusion. Alot has been said about Bitcoin and gold and I just want to.let you know that they are not the only stores of value.
If you seek what you can use as a means of payment, cryptocurrencies and fiat are still there for you.
The point you make is important as many people mistakenly think that only gold and Bitcoin are stores of value. In reality, they are not. Silver, real estate, stocks, natural resources can also preserve value in different ways. But the most important thing here is that not all assets work the same way. Some assets are good at preserving wealth, some are good at generating income, some provide liquidity, and some can act as an inflation hedge. So an investor must first understand what he really wants to preserve wealth. To create income or to seek growth. In this case, if someone wants to invest in something for a long time with low volatility, then gold can be perfect.