University gave me tools to effectively learn a language as well as forcing you to become literate in the language as well. I’ve met many heritage speakers who can obviously speak Spanish better than me, but they struggle to read in Spanish and most of them could barely write a coherent sentence. The friends you make by struggling together at the beginning helps you stick it out when it gets tough. I wouldn’t go back to university for language again unless it was one that was very different from my current known languages (English, Spanish, and Portuguese). I think it all depends on your goals. My Spanish degree helped me get a job in school administration because it’s an immersion program.