They weren't "boys." They were 18 year old men (2 above, plus Edmund). The last was 17.
All above the age of consent. All of age to enlist in the Marines.
The wrongdoing by Foley is that he should not be doing this with pages, even if they are just over age. BUT it is true no crime was committed, and once they are over age they are engaging in something the democrats defend as an absolute right. IMHO this story has now become almost total BS.