My girlfriend is superstitious. What should I do?

Don't pay too much attention. Girls are more or less neurotic and have no real superstition. You don't have to care too much, as long as she doesn't interfere in your life.

There are absolutely no two people exactly alike. Everyone will have their own hobbies, as long as they don't affect your normal life. Why bother ~ ~ ~

The so-called superstition can make her feel more at ease, can't it? Why bother?