I wrote about the same subject. I also told about something similar to your rainy day fund, which I have maintained throughout my working life.
I think every judicious person should prepare for the possibility of running out of a source of income. 👍
Thank you very much for your comment, and yes, my opinion is that we always have to think that maybe one day it won't be the same, maybe we will run out of income or maybe much worse when we need more money one time either for surgery or for anything urgent.
At least here in Romania, when it comes to asking someone for financial help, you will hit a brick wall, so save up, because you never know when it will come in handy.
Have a wonderful week ahead!