I don't think people of the 19th century were fundamentally better than they are today. Things like (sexual) abuse happened. There was probably a lot more of it than today: big taboo on anything related to sex, women couldn't even vote, fewer investigative tools (fingerprints, cameras, DNA). Well, it probably wasn't great.
Today if a child would see a friend blow up in front of him people would be talking about PTSD, (life-long) trauma, etc. During the war my grandfather had a friend blow up in front of him. "Well, you didn't get any help in those days, you just had to deal with it, haha!"
In the past lots of things like this were under-represented. Today they're probably over-represented.