Not to distract, as these are all valid concerns, but why on earth is anyone leaving anything on an exchange for longer than it takes for the deposit, transaction, and withdrawal to clear.
> why on earth is anyone leaving anything on an exchange for longer than it takes for the deposit, transaction, and withdrawal to clear.
I've never advised my dad to take his crypto off of Coinbase, and he's been keeping it there safely for about six years at this point. It's the best place for him to keep it, for better or worse. I'm not there to transfer everything to a ledger as he trades, and I also don't really want to take responsibility for all of his funds anyway. If he started trading on Binance US (not gonna happen) then I would probably just tell him to send it to Coinbase. I don't keep my crypto on exchanges, but for a lot of people, it really is better than the alternatives.
Because they are day-trading, and if everyone stopped day-trading, all of these exchanges would collapse overnight. They can't sustain themselves off people buying coins once a year.