Walking?

Al

My daughter still isn’t walking. She can walk with the push walker, holding someone’s hand, pulls up onto everything, cruises the furniture, can stand independently and “walks” on her knees all the time but refuses to walk independently. Anyone else? Any tips? We gave her 18 month check up tomorrow and I’m so worried about what could potentially be the issue.

Side note: Her older sister started walking at 17.5 months soooo maybe she’s going to start anytime now.