Bitcoin usage as currency or payment method isn't as low as people think, because it's legal in few country & there's small group who use Bitcoin to pay goods.
People have no clue about how things work outside their narrowminded bubble. The dollars and euros people use on a daily basis as money is just one aspect of these assets. The far majority of the demand and use for these assets is related to speculation on forex markets. Speculation is what brings in the demand. It's not negative at all.
The ratios between use and speculation in Bitcoin might be farther apart because it's a new and upcoming asset, but it's certainly getting a lot of use as money. There is more than just buying a coffee with Bitcoin that people seem to forget.