The reasons why Oriental Shorthair cats are difficult to raise are as follows:

Stubborn by nature. Oriental Shorthair cats are very jealous and possessive; they will not react at all if they don't want to do something.
Highly energetic. Oriental Shorthair cats are lively and active, requiring a lot of exercise and space, and demanding a significant amount of time and energy from their owners.
Oriental Shorthair cats have sensitive stomachs and are prone to diarrhea. It's best to feed them a consistent brand of cat food. If you need to switch them to a different brand, do so gradually.
Appearance is not popular. The Oriental Shorthair has two ears that are larger than its face, making it look like a bat at first glance, so not everyone accepts its appearance.