I'm thinking of giving my baby brother a knife to play with.
Do you really think he would like that?
Yes, because everyone loves knives. I want him to be prepared in case he needs something sharp in the future.
Giving your baby brother a knife is extremely dangerous. You should find something else to give your baby brother for a gift that will make him happy. Giving your baby brother the knife will most likely wind up with him hurting himself
Knives needs to be used.
Don't give your little brother knives. You're putting him in danger.