Obviously the increase shouldn't be too big. It has to stay below skilled and educated workers. Otherwise the pay for them also has to go up and then yes there would be problems.
And the last thing we need is a well paid workforce.
Even if were government's job to decide how much people should get paid (and it's not), minimum wage laws to mandate how much low wage workers will get paid. They simply make it illegal for them to work for less. Can you understand that?