Dear sister elizaveta,
The second part of the canon refers to permanent parishioners. The more relevant canon is the first one which assigns a moral obligation on the bishop to provide for the needs of visitors.
I just quoted the canon (you did, too

).
No time like the present to teach your children the value of respecting unity in diversity.
Blessings,
Marduk
Canon 383-1:
In exercising his pastoral office, the diocesan Bishop is to be solicitous for all Christ’s faithful entrusted to his care, whatever their age, condition or nationality, whether they live in the territory or are visiting there.
Canon 383-2:
If he has faithful of a different rite in his diocese, he is to provide for their spiritual needs either by means of priests or parishes of the same rite, or by an episcopal vicar.
Actually there is nothing in the canon quoted that states that a Bishop must allow visitors or permanent parishioners of another rite to take communion in the latin rite. And nothing that could force his hand.
The first part of the canon does not say that the Bishop has a “moral obligation to provide for the needs of visitors” It says he is to be solicitous. To be solicitous is to be careful and concerned. There are no specifics about how he is to accomplish this.
The only definite instruction in the code quoted is for him to provide his own parishoners with their “spiritual needs” in their own rite.
Since the Bishops obligation to his permanent parishoners has been clearly stated and there are no definite instructions on the care of visitors, then it follows that the Bishops obligation to any visitor would also be to sacraments in their own rite. Permitting them to commune in the Latin rite would be his choice, not his obligation.
Also, since there is no moral, or Ecclesiastical, law that requires the taking of communion at each mass attended, even on Sundays, the case could be made that the spiritual health of his own parishoners would take precedent over the desires of a visitor. Especially if that visitor was able to have the sacraments regularly in their own rite.
Finally, forcing parents into the position of having to unexpectedly try and teach a young child about “respecting unity in diversity” during Communion is inappropriate to say the least.