Many people that want the minimum wage to be 15$ work for places that are considered "entry level jobs". These were jobs that were created for people to earn a little extra money. You are not meant to live on a wage that comes from an entry-level job. Nobody will pay someone 15$ per hour to flip a burger.
People in the US deserve more that say "8" dollars minimum wage. People need to realize that there are hard working people rather than lazy ones getting paid from the federal Government for sitting down and watching Television.
If you worked hard they would not pay you minimum wage. If they payed people 15$ an hour it would increase costs of their goods therefore the company wild increase prices lose business and lay off a large percentage of their workforce.