First of all, let me state that it makes me concerned and angry for the children that some parishes feel free to disregard canon law on this matter. I also think it is pretty weird that someone would want to photograph their child’s first confession, although I don’t think it is horrible to photograph confession in general. Canon law is clear on the matter; all penitents have a right to confession behind a fixed grill and it remains the norm of the Latin church, while face to face confession is available at the discretion of the priest.
Having said that…
I know that it is difficult when things change. We have these ideas that the way we were taught is exactly has it has always been, exactly as it is supposed to be. This seems to be especially true if one was taught by nuns in the 40s and 50s.

There’s a saying that I have often heard in the Byzantine Catholic Church: “Tradition began the day your grandmother was born.” I have heard this saying as we have worked against internal pressures to recover the traditions of our Church. We have short memories, and if everyone we know has only experience things a certain way, it is easy to believe that this is a long standing tradition. An example of this is the modern practice (less than 100 years old) in the Latin Church of having First Communion occur before Confirmation.
The “traditional” confessional didn’t exist until 1564, when St. Charles Borromeo mandated that confessionals in his diocese be closed on both sides, with a grill between penitent and priest. His concern was modesty and propriety, not anonymity. This practice did not become universal until the 17th century. What were people doing for the sixteen centuries prior to that? First, they were confessing in public, to the entire Christian community. Private confession did not become the norm in the west until the 7th century. For 1000 years, people were confessing to a priest, one-on-one, without the benefit of “anonymity”. In the east, the concept of “anonymous” confession has never developed. At one time, canon law required that a person confess to his own pastor. We no longer have that requirement, but it is clear that the so-called anonymous confession is not a sacred tradition that has been a critical part of the sacrament since the beginning. Our needs change. Our sensibilities as a people change. Sometimes, ideas take root as unintended consequences of a good idea. For example, confessionals were established to protect modesty. Because of this, penitents were now given a certain amount of anonymity. Next thing you know, we view anonymity as a critical aspect of confession. Perhaps someday in the future, with generations growing up with face-to-face, it will once again become the norm and confession behind a screen will be viewed as kind of strange and uncomfortable. Let’s not always assume that new ways are bad, or liberal, or misguided.