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From my point of view every person should acquire knowledge about Bitcoin and pass knowledge about Bitcoin to their children. However you started collecting bitcoins from the age of 18 it is very good if you can invest patiently till 10 years from today you will have accumulated a lot of bitcoins and your success is guaranteed. It is very important that you have to be aware of more long-term investment planning or else you will not be able to manage long-term investments successfully.
Such things can still be done from now on by the current young generation, but considering the price of Bitcoin which is no longer in the low category, of course it will also take a long time to collect more Bitcoins to reach the duration of time you said. But that is a very good thing and may have even been done by many people since Bitcoin started to become more popular in the last ten years so that at this time those who are able to manage their investments like that have found a higher level of success until they have passed on their knowledge to their own generation, namely their children.