This is the time of year when Catholic children who go to public schools also have to attend classes on Sundays.

What most Christians call “Sunday school,” Catholics refer to as “religious formation.” It is required of all Catholics — baptized children and adults who have converted or returned to the faith — in order to prepare for the receiving of sacraments such as Holy Communion and Confirmation.

Many Catholic parents have been concerned, obviously, after the revelations of this past summer involving ex-cardinal Theodore McCarrick and the hundreds of Pennsylvania priests accused of molesting children and teens dating back decades made public in a grand jury report. The abuse of minors and sexual harassment of adults in the church has triggered plenty of doubt among the faithful regarding the church’s hierarchy.

This can impact church life in many ways. Here is one Sunday-morning angle that reporters need to think about.

The conversations in the pews and outside churches in the past few weeks have revolved around their child’s safety, revealing a crisis of faith that is very real. Should their son or daughter attend religious formation this year? Can they trust a priest or church volunteer to be alone with their child? Have any safety procedures been put into place?

There are 17,156 local parishes in the United States with an estimated 70 million Catholics. A much smaller number, however, remains active in the church. For example, only 42 percent of families send their children to religious formation, according to research in 2015 (click here for .pdf) by the Center for Applied Research in the Apostolate at Georgetown University.

Indeed, the habits of American Catholics have vastly changed over the past few decades, and the events of this past summer will certainly impact the church (including attendance and donations) going forward. How much and to what extent remains to be seen. Two-thirds of Catholic millennials, for example, attend Mass only “a few times a year or less often.” That’s compared to 55 percent of pre-Vatican II Catholics, who go at least once a week, according to that same Georgetown University study.

Nonetheless, we are still talking about millions of people affected here.