The extent to which you can control the peer groups your kids socialize with is quite large. Some religious sects, for example, control that socialization very tightly. The wisdom of such an approach is debatable, but it's definitely possible. A hybrid approach might be to influence (rather than strictly control) the peer-selection process and also attempt to immunize your kids to the worst aspects of their peer culture.
torekp:
The extent to which you can control the peer groups your kids socialize with is quite large.
Yes, but you have only so many possible peer groups to choose from; it's not like you can custom-design one. Ultimately, your kids will internalize the norms and taboos dictated by their peer group, and your attempts to question them will make you look stupid and obnoxious in the kids' eyes. Until of course they grow up (which happens extremely late in our society by all historical standards).
...Some religious sects, for example, control that socializat
A while back I did a couple of posts on the care and feeding of young rationalists. Though it is not new, I recently found a truly excellent post on this topic, in Dale Mcgowan's blog, The Meming of Life. The post details a survey carried out on ordinary citizens of Hitler's Germany, searching for correlations between style of upbringing, and adult moral decisions.