A lot of scams have caused the fear of theft among people and they are regarding bitcoin and its trading a scam. People seem to be reluctant towards investing in bitcoins. How do we ensure them that bitcoins are not scam but the people are. 
When peoples accept bitcoin as a currency, that means bitcoin has already became a stable currency.
For now i think bitcoin price is stable in the market. Even there are many scams in the past, but that was not bitcoin. So peoples can trust on bitcoin.