I think it depends on the kid- my DS11 has a wonky grip (he's also a lefty). When he was in first, the OT suggested some ways to change it, but DS was extremely resistant (and had been writing for several years already at that point). Through talks with the OT, we decided to let it go. Her main concern was that as the volume of writing increased he would encounter fatigue, frustration, and/or pain, but she also acknowledged that he would have more opportunities for keyboarding as time went on. (Our school starts typing instruction in first grade). For us, it was not worth changing something that already worked reasonably well, with the assumption that he would be writing by hand less and less; we found there were other areas on which we would rather he spent his efforts. Just my view...
