On my counsins minecraft, in the menu he haves this one other option called "edition" when i checked mine there is no edition so im not able to play with him, why so?

Please fix my minecraft of PS4

Username:TeQuiLa684

My minecraft on my PS4 dont have this one option in the menu called "Edition" but i checked my counsins minecraft on his PS4, he haves it, why so?