How long should we use 'kids-only' shampoo for our children?

Raising a child has made even choosing a single shampoo a real struggle. When my baby was very young, I naturally used mild baby washes or shampoos, but as my child grows, becomes more active, and sweats significantly more, I've started to worry about cleansing power.

However, I worry that using regular adult shampoo might be irritating because their scalp is still delicate, but if I stick to kids' shampoo, I sometimes wonder if scalp odor or impurities are being washed away thoroughly.

Up until what age do you usually use kids' products?

For those who have switched to regular shampoo, I am curious to know what criteria you used to make the change, or if you could recommend a shampoo with mild ingredients that the whole family can use with peace of mind!

Please feel free to share any ingredients you absolutely must check when choosing shampoo, or any of your own tips!