Human: Is it okay to use a weed wacker to trim grass? Assistant: 
It depends on the type of grass you are trying to trim and what other tools you have available. Weed whackers are designed to remove weeds quickly, so they can be useful for small areas where you don’t want to damage your lawn mower or edger. However, if you are using a weed whacker, make sure to follow safety guidelines such as wearing protective gear like goggles and gloves, and keeping the machine pointed away from yourself.