If you are a bass guitar player and loves to play your bass all the time, I am sure that you also own couple of extra bass guitar strings. You will never know when a string will break as it could happen in the middle of performing that is why it is very important that you have an extra string handy wherever you go.
Even ordinary players who just play guitar for a hobby should have a spare guitar strings all the time. When the urge of playing your guitar comes, I am sure that you will be frustrated if you can't do it because you don't have an extra string.
Different guitars have different strings. Be sure to use the brand of strings that is proven to be of high quality.