What rational reason is there to keep my old savings bank account?

I've had my savings bank account since I was a teenager. However, I am now over the age limit and for years people have been charging me €2.90 per month for nothing. I actually don't feel like it anymore. I'd rather invest the money I save in a carbonara. I've had my main account with ING for several years and I'm more or less happy with it. Of course there are some things that could be better, but so far it's fine. I simply had the savings bank account