I can share common kitchen tools that some people have found to be obsolete or useless based on their feedback and experiences:
Egg Separator: Many people find it unnecessary as they can separate eggs easily using the shell or their hands.
Banana Slicer: A tool designed specifically to slice bananas may seem convenient, but it often turns out to be unnecessary since bananas are easily sliced with a regular knife.
Avocado Slicer: Similar to the banana slicer, this tool is meant to cut and scoop out avocados, but a regular knife and spoon can do the job just as well.
Single-purpose gadgets (e.g., strawberry huller, garlic peeler): These gadgets are designed for specific tasks but often don't offer much advantage over using a regular knife or your hands.
Electric Can Opener: While it may save some effort, many people find manual can openers to be more reliable and take up less space in the kitchen.
Corn Kerneler: This tool is meant to remove corn kernels from the cob, but a simple knife can accomplish the same task without adding an extra gadget to your kitchen.
Fruit and Vegetable Peelers: While peelers can be useful for certain tasks, some people find them unnecessary, as they can use a knife or their hands to peel fruits and vegetables.
Electric Knife Sharpener: While convenient, some cooking enthusiasts prefer to use a whetstone or honing rod to sharpen their knives manually for better control and precision.
Remember, individual preferences may vary, and what may be considered useless for some can be helpful to others. It's essential to assess your cooking habits and needs before investing in any kitchen tool to avoid cluttering your kitchen with items you won't use frequently.