But I think if you want to leave it for your next generation, then you can definitely close your eyes and buy Bitcoin. Maybe in the next 100 years, many new technologies will come, maybe something new will come, but I can say without a doubt that nothing will happen in 100 years.
More than 20 years ago, no government or central bank could have imagined that there would be a currency or system that could threaten their centralized system. But then that happened with the advent of bitcoin.
Likewise, no one can be sure and know what will happen in the next 10 years, let alone the next 100 years. Especially with the rapid development of technology, anything can happen.
Only time will reveal how long Bitcoin can last. We cannot guarantee or commit to anything as it is beyond our control and ability.
With the potential of bitcoin, we can hope it will last as long as possible and we can buy and inherit bitcoins for future generations. But it's wiser to diversify because anything can happen.