我如何计算出谁是司机名单中最年轻的

driver_list = [
    {"name": "张三", "age": 25},
    {"name": "李四", "age": 22},
    {"name": "王五", "age": 28},
    {"name": "赵六", "age": 20}
]

youngest_driver = driver_list[0]  # 假设第一个司机是最年轻的

for driver in driver_list:
    if driver["age"] < youngest_driver["age"]:
        youngest_driver = driver

youngest_driver_name = youngest_driver["name"]
print("最年轻的司机是：" + youngest_driver_name)