Personally I feel as though there are many bad middos to be learned from the Tintin books. It glorifies violence, verbal abuse, idol worship, kol ishah, drugs and alcohol, and little white dogs. All of the above are assur, and is therefore unsuitable material for anybody, much less children.
There innumerable inappropriate elements throughout the series, all of which can terrible influence on impressionable young minds. The Thom(p)son brothers’ antics leave one with a mocking disdain of law enforcement. Professor Calculus exhibits a seeming ability to wreak untold havoc, even creating weapons of mass destruction, and get away with it on the pretense of a hearing disorder. What good can possibly emerge from that? Captain Haddock epitomizes a kiddish club gone wrong, yet is portrayed as quite the lovable rogue.
Tintin himself is not much of a role model either. In the books (and the movie), he is depicted as quite a young man, appearing not a day older than 16. Where are his parents? What kind of chinuch is this? A child may very well put the book down thinking that they too can simply gallivant around the world with no repercussions.
I hope that I have convinced at least a small portion of you of the grave danger this terrible series poses to our youth. If even one parent reads this, and does not allow their child to read the books because of it, I will consider this time well spent.
(I have only included a small portion of the many terrible habits and ideas prevalent in the series. There are many more, and I’d be happy to share them with anyone who is not yet completely convinced.)