Original sentence: The feet and toes are often ticklish.
Is it correct? Yes — the sentence is understandable and grammatically okay. But toes are part of feet, so saying both can sound a bit repetitive. Here are clearer ways to say the same idea:
- Feet and toes are often ticklish.
- The feet are often ticklish, especially the toes.
Quick explanation for a 6-year-old: "often" means it happens many times. "Toes" are part of your "feet," so you can say just "feet" or say both if you want to be extra clear.