He should go with something a bit more traditional. Æthelstan or Eadwig, or Æthelred, or Harthacnut.
??We do need Charles to be King for sometime.
The last thing our next heir needs is to be a child when they get that mantle. They need to have finished education, made some mistakes, got drunk, has a special " friend" or two and basically lived a bit before William ascends and the next in line is declared.
Yes. Sorry if I didnt make that clear? Heir to the throne ( George or sibling) could do with being in his 20s and have lived a bit before taking on the duties as " heir to the throne". So Charles needs a good 15 years at least as king??
Prince William is 40, has been married for 11 years, has 3 children... I really can't see Charles stepping aside, but William is no child. Were you maybe thinking of George?