School districts in California are worried about cafeteria workers fleeing to fast-food chains to get $20-an-hour wages

• California school districts are worried about workers could leave for $20 jobs in fast food.
• "Persistent staffing issues" are leading to more use of pre-packaged food and longer lines for lunch, a report says.
• The state put the minimum wage for fast-food workers up to $20 an hour on April 1.

School districts in California are worried about food and cafeteria workers leaving for higher-paying jobs at fast-food restaurants after the state boosted the sector's minimum wage to $20 an hour.