Try sending money overseas to your family members not using bitcoin, and you will start understand how usefull bitcoin really is, and the confirmation time will start looking as super fast.
Nobody is saying that Bitcoin isn't a VERY GOOD idea...
It really is!!
What I say is that it could be fixed to be an EVEN better idea without losing ANY of its current uses and properties.
What you have to understand is that for something to be "a good money" it needs to be able to be used ON ANY KIND of transactions, not just one or a few of them.
Instant transactions (meaning in seconds) are too important NOT to support!
Otherwise another currency that can do what BTC can and ALSO supports transacting in half a minute will replace bitcoin in many uses and will devaluate your BTCs.
It's just like food stamps, if they can ony buy food there are less liquid, less useful that those stinky dollars or euros that don't have that limitation.
I know many think of bitcoin just as a niche currency & payment system, but to succeed even in being that it has to be tackle the decentralised instant payment problem or at least be honest about it and concede defeat, saying it is not really that instantaneous, just faster than traditional fiat based payment payments.