I would be interested to know what you think is the biggest criticism of Bitcoin or where you see the biggest weakness?
Nothing is perfect. Despite some weaknesses, bitcoin still provides many financial opportunities.
I would criticize bitcoin for being unfriendly to newcomers and the majority of the population. For such a financial product to be truly widespread and global, bitcoin had to be easier to use (without losing benefits) by all members of society, and not just tech geeks (I would like to watch you teach your grandma to use bitcoin

).
And what would you respond to this criticism if you were confronted with it in a conversation?
I would answer that if you simplify bitcoin, it will get rid of all the advantages.