But what else is there? ;-)
It was people smelling the underlying complexity (and security vulnerabilities) of grain sacks, gold bars, paper-dollars, bank-dollars, credit cards, Paypal, etc that led to the succession of those things, with Bitcoin being the latest solution-to-it-all.
Every one of Bitcoin's ancestors had failures, and due to grass-is-always-greener psychology, the most recent ones (dollars and financial server institutions) are naturally viewed as the "worst" (because their failures, unlike grain bags' failures, are part of people's real experiences and memories) so Bitcoin has gone full circle (not exactly, but it's kind of commodity-like) and tends to have security models similar to commodity-money's models. Thus it's having similar failures ("I lost my wallet" == "I forgot where I buried the gold" ; "someone 'hacked' my wallet and transfered my funds out" == "I dug up my gold, and the chest was empty" ; "The online wallet service closed and they, rather than me, is who actually had the key" == "The guy, whom I asked to hold my gold, disappeared").
Maybe some day, governments will use force or sneakiness or "social weight" to make a new chain policy more popular than today's policy, and there will be a Bitcoin fork, which presents a model more like 20th century banking. Then the security complaints will be "my account got frozen" or "I'm leaking wealth due to government-created inflation" or even "the price of everything in BTC changed because of immensely complicated market and government forces that I can't begin to understand, where my currency on the surface appears to be as strong as it was in 2106, but somehow here in 2109 I'm poorer." And then we'll repeat the cycle again.
We'll repeat it again, because money wasn't actually the problem. Real life was the problem, and life is complicated. Life is full of intelligent adversaries (sometimes posing as friends, sometimes not), bumbling fools with too much power, bad luck, freak accidents, etc, and nobody can ever get rid of all that stuff.