imho God does not mess about and do by half measures - so what is required so that we may be saved - He knew we could not save ourselves so decided to save us in spite of ourselves - so what are the requirements or qualifications in order to be saved - they simply are "ye must become as little children and simply simply believe" - knowing this would be very difficult or well nigh impossible for most adults - He, especially chose that we be born as little Christian children that did simply simply believe and continued to do so - imho - twinc