There was nothing wrong with his family being with him, and I thought they were all dressed very proper. In fact, it was quite refreshing to see those cute little kids. The losers at the WP are just mad because Bush got to appoint someone for the SCOTUS position. Jealousy is a terrible thing! They're just going to have to deal with it.
It's a personal decision whether he should bring his family or not. Some people don't want their families in the public eye. Once they enter the public eye, even if they are uner 18, they lose some rights to privacy under the law. My feeling is that it makes no difference, either way.