Is 50 too old to be doing homework?

At 50 years old I am working on my masters and I often wonder at times like this if I am too old to be doing homework on a Sunday afternoon. People I have share this with will ask my why I am doing it, is it for my career or what? Honestly I dont know anymore, it was a time to challenge myself, to prove those who doubted me that YES I did do it. Not sure anymore, but yet after this post I am doing my assignment.

Happy Sunday Evening!