OPPORTUNITIES FOR ADVANCEMENT
Fortunately, zookeepers won't have the same job your whole life. There are opportunities to move up. When they first start, they'll be working with smaller and less dangerous animals with a smaller responsibility. As they become more experienced they can start caring for more dangerous animals such as tigers and hippos.
JOB OUTLOOK FOR THE FUTURE
A zookeeper will most likely be around for the next 20-30 years. Zoos have been around since ancient Egypt and they've been protecting animals from becoming extinct.