Depends where the room's lighting comes from. In my old house, old dryer in the basement with a single bare bulb located directly over the dryer. I left many an unmatched sock sock inside by accident and found it when I returned looking with a flashlight. Fast forward to my present home where much newer model dryer (with a light) is located in a
1/2 bath with the washer and dryer across some floor space from a sink with multi-bulb vanity light on the wall over the sink. Lighting shines from the vanity lighting fixture directly into the drum of the dryer when the dryer door is open.I would have found an inside dryer light very convenient in the old house but is entirely unnecessary in my current home.