The choices I give at the coin toss are to defer, to receive, and which goal to defend. I leave out the choice to kick so that they will pick a goal to defend instead of giving all of the choices to the other team.
If a team chooses to defend a goal instead of kick then they have just also chosen, 99.999999% (statistical fact

) of the time, to kick but they have also chosen which direction they will kick. The choice to kick is a very limiting choice because the other team gets to receive and they get to go in the direction they want.
There are only three choices in the coin toss. To defer choice until the second half, who will be kicking, and from which end of the field each team will be playing. When one team chooses to recieve the other team is, by default, the kicking team. They don't have to choose to kick the ball.