AHEM. You are being too presumptuous, Mr Dar- CA. Firstly, they are CENTS not "PENNIES". Secondly, we may not have been alive OR even in the country, but we're not ignorant.
Also, the first time I've ever seen a one or two cent piece was sometime last year in science. They're seriously just annoying shrapnel. Working with five cents as the smallest coin is pretty handy - even though I still get annoyed at having too many five cent bits.
Most prices here are now just the multiples of five (10c, 25c, 60c etc.) 'cept for some annoying people who like to take that extra cent off you.
I even went to my dad for a second opinion and he says we're better off without them and they're just going to weigh your pocket down. And besides, is there really much anymore you can buy for that price, hmm? AND, if you did change, you don't actually lose any money, because they just replace it and you still get the same amount that you had in pennies or whatever.
Therefore! Onwards to the future and rid your selves of the useless 1/100th of a dollar coins!