Not all but there are free money also that we can receive. Charity is giving free money, programs of the government and contests in social media. In fact, it is the trend nowadays, vloggers are givingaway fiat to their viewers who can guess their game. However, it is really different in crypto space why? Because in this industry, 80% of strangers are scammers. We should not easily encourage by their sweet words. If we want to avoid frauds and scamming, we should not engage in rich quick scheme and having a research in a project is our edges in scammers.