Passing Big Sisters Walking Date

Over 14 months now and the twins are still barely walking. Lochlan has mastered the 4-8 steps before down on his knees, while his little sister is still walking and holding at the same time. Paley was walking full time by 14 months. We’ve proved the wives tale that siblings walk faster because they have an older sibling to provoke them. Now I am not in a rush to have them walk but there is a little piece of me that they would be walking by 14 months. Failure, no! Just another test in patience!