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I don't think speculation is a good lesson but the ability to do more with ur money than spend it or gain no interest in a bank account is a good thing and I only learned it by listening to others as I was making my way.
Anything is better than being an uneducated man who follows the main patch everybody else is going. People are gonna learn - speculation is only a first step here.
When you are first starting with crypto then you might be pumped up by the stories of others who got rich in an instant, overnight.
But as you are learning how crypto ecosystem is working your attention will probably shift from market speculation to other types of crypto-investing.