Premise (a crowdsourced insights company) reported in a press release that 41% of respondents consider Bitcoin to be more reliable than their own local currencies.
Those numbers actually seem pretty high to me. Many people don't even know enough about Bitcoin and cryptocurrencies in general, much less about their security or reliability. We still have a long way to go before people are comfortable with the concept of decentralized currencies, something they have never experienced before.
There are a number of issues with this figure that makes me believe it is not reliable.
They are only polling people with a smartphone, and they are only polling people with their smartphone app (these are two separate issues). Neither of these are going to be representative of the general population.
They say the survey is ongoing, but they released some of the results ahead of time. This has the potential to affect future responses.
Typically, when conducting a survey, the person conducting the survey will calculate how many responses they need in order to get an accurate representation of the general population and will stop once they receive that many responses. 11k+ responses seems like a lot to me.
I think conducting the survey via their app (likely paying them to do so) will likely oversample responses from poorer countries. The dollar for example is widely accepted throughout the world, even in places where it is not the official currency. This is because the dollar is trusted more than the local currency. In some places, if you are traveling from the US, you almost don't even need to exchange your dollars for the local currency -- you can pay for everything in dollars, and sometimes end up getting a better price for doing so (although in these types of places, many vendors are willing to negotiate on price for everyone).