Mostly agree, but let me play devils advocate.
Banks spend millions on security.....
Average user PC is vulnerable.
Your turn :-)
FIAT still got stolen from source ( bank database ) - cost, millions on security.
no one can steal bitcoins directly from the bitcoin protocol ( blockchain ) - cost, nothing
separate type of theft:
pick pocketing does happen alot every day
bitcoin scams and trojans happens alot every day but not to the extent of total world crimes of back pocket wallet theft
and as for personal security. paper wallet.. costs just the price of ink and a few minutes work. no armd guards, auditors checking for loses, no managers, no bullet proof vests, no bullet proof money trucks, no timelocked vaults, no institutional oversight committees like fincen SEC.
just one man, a piece of paper and a printer.