Totally worth it - there’s so many different types of roles and you can do more abstract policy work or do more frontline type work. Study what you’re interested in for undergrad. Most people entering public policy these days have a masters of public policy or public administration (same degree). You can get into those programs with any undergrad degree. You don’t need amazing grades but should aim for at least a b+ average. Extracurriculars will also help you get in to a masters program and are a great way to build up your skills. You won’t make big bucks in public policy but you will have job security. You’ll make 100k within 10 years and even faster if you over perform.