It is indeed, a matter of choice, however, it is not a hill worth dying on, as long as the body of Christ is received with due reverence. If the Holy Father, or a simple parish priest, expresses his desire for me to receive it one way or another, I will obediently abide.
I see validity in the arguments made on both side, but again, think argument over it is silly, and in itself irreverent.
Some say it must be received on the tongue, because we are not worthy to touch the body of Christ; others say it must be the hand because vial and wicked words and lies come from our mouth, and our hands are used to perform good works.
Somehow in my heart-of-hearts, I think that Christ has no issues with us touching him. I sense him carrying me with his loving arms wrapped around me, and not dragging me, pinching my tongue between his thumb and index finger so not to be soiled by my sinful filth…embracing me with his loving touch, just as he embraced the sick, the infirm, the blind, and those more and less sinful than I.
Peace and all good!