Having gutters is essential for protecting your home from the damaging effects of rainwater. Without gutters, rain will flow freely down the sides of your house, causing all kinds of stains and damage. This can lead to rotting of the wood coating, as well as staining of vinyl siding, which can reduce the value and curb appeal of your home. In addition to this, when rain falls from a roof that doesn't have gutters, it can cause erosion around the foundation.
This is because gutters are designed with a special slope that diverts water runoff to a nozzle or to a safe place on the floor, keeping the roof free of stagnant water. Living without gutters can end up causing more problems than it solves, so it's important to weigh the pros and cons carefully. In general, proper gutter maintenance or effective gutter protectors will help alleviate your worries.