In my life, I follow the philosophy that if you do not own something expensive or have someone important in your life (like a romantic partner), it is impossible to lose it or them. Because losing something like this is a negative outcome, I prefer not having this something in the first place. In other words, having something of importance in your life, reaping the benefits of it, but there being a possibility of losing it, for me is worse than not having this something in the first place.
I believe I have come across a name for this philosophy and that it is not a new idea, but I may be mistaken.
Does this philosophy have a name?
The closest thing to this I am familiar with is antinatalism -- beliving that it is better never to have been born, i.e. being alive ("having life") is far worse than not existing at all.