exactly, convincing someone to invest on Crypto is the big mistake I will never make or do. Some people that convinced cryptocurrency (bitcoin) to their friends, wife, children, mother, husband etc does not really understand the risk involve in it they too are time unaware of the whole process, that is how cryptocurrency work, they only know that cryptocurrency investment is good and profitable. Yes it is profitable but when you lost, ehn! You might lost everything you have laboured for years. So always use risk management mindset to deal with bitcoin before introduce it to someone.  And also, always know whom you are convincing, if you convinced someone that is not polite, and his funds got lost. Op at that time you would understand why it is not not good to convince someone to deal with crypto.