Milestone Range Sitting without support 3.8 months to 9.2 months Standing with assistance 4.8 months to 11.4 months Crawling (5% of kids never do) 5.2 months to 13.5 months Walking with help 5.9 months to 13.7 months Standing alone 6.9 months to 16.9 months Walking alone 8.2 months to 17.6 months From this data, we see the logic for Dr.
