If my child and I are inside, I can say "Go out (outside) and play!".
So if we're upstairs, can I say "Go down and play!" to tell my child to go downstairs to play?
Likewise,
Can I say "Go up and play!" to tell my child to go upstairs to play?
Likewise,
Can I say "Go in (inside) and play!" to tell my child to come inside and play?
Thanks!