It is unnecessary, but it would also be silly to pass on the opportunity if the child shows interest - one more way to keep them entertained, and they learn use

It is unnecessary, but it would also be silly to pass on the opportunity if the child shows interest - one more way to keep them entertained, and they learn useful stuff to boot. Expose them to numbers, letters and reading. If they are interested they’ll soak it up and learn almost by themselves. If not, it’s fine to not push it - as you say it will get hammered into them in due course. Learn to listen to your child :)