You can participate if your mother gives you permission and she can receive the money for you.
Can't I just do this for fun and not get the 50$ cause I don't really care about the prize
like if I do win (which I probably won't) can't you just get the 3 keys?
Sí, o podría darte las 3 llaves y algún juego de ese valor, si no puedes recibir el dinero.
ok