This alone is enough. Bitcoin is a trusted asset.
It depends on the individual. There is a person who is still not confident to invest in Bitcoin although we call it as a trusted digital asset. But for a crypto enthusiast, it can be more than enough to be the main reason to invest in Bitcoin. Educational background or the insight/knowledge has a crucial role to convince someone for joining Bitcoin investment.
Which is likely to be legalized in all countries in the future.
How do you know it will be legalized in all countries?
I actually really expect this, it will be a big boost for crypto. However, since the government doesn't like a decentralized idea, it is likely a bit difficult to be legalized by all governments in the world.
I believe that Bitcoin will reach its peak one day.
What is the peak of Bitcoin in your perception?
I think everyone may have a different perception about what the peak of Bitcoin is.
So if you have the power (extra money) then I'd say definitely hold on to Bitcoin. At least for your child's future.
Sure, we invest in Bitcoin or other investments are for the future of our children, too. But don't rely on Bitcoin for our children future.