Heidi Klum Goes Topless And It's Fine Except....

OK so ignore Cindy Crawford on the left. She's chillin sunbathing on her boat topless and she's fine. What I need you to focus on is Heidi Klum chillin topless on her boat with her son. Hmmmmmmm, mkay. I just want to know when it becomes inappropriate to just be bouncin aroun nekkid in front of your children? Or does it ever become inappropriate? Is it always OK to just show your goods to your kids cuz they are your kids and they come from your cooch? I understand Heidi is European and they do things differently over there but um, seriously?