An interesting fact is that it took only one year for BTC to grow from $3000 to $60000, and the 20 times increase was absorbed in 12 months.
Therefore, you should ask yourself: can you find a reasonable point and have confidence to hold it until you are satisfied with it? What you should look for is not the target, but the investment logic, investment strategy, and investment confidence.
That's not a guarantee that bitcoin can grow from its current price to $60k because we don't know when bitcoin will start moving. We can only predict it will begin next year. For the rest, we can only leave it to the market. If they can't hold on to it for a long time and instead will panic at the fluctuations in the price of bitcoin from time to time, they shouldn't invest in crypto and shift their money to something else that can make them feel safe.
And I guess if they only invest in bitcoin, it will be more than enough because they don't need to focus on many coins. In addition, the price of bitcoin can indeed increase in the future so investing in bitcoin is worth it.