It’s never to late to relearn a suboptimal skill you thought you knew. I believe I found this site several decades after being taught the standard shoe lace knot and a child. That one ALWAYS needed a second knot to keep my laces tied. Now I tie either the two loop knot “bunny ears” or Ian’s Secure Shoelace knot. Both are balanced so the knots always stays tied and both can be pulled apart and undone with a simple tug at both free ends of the shoelace. Haven’t tied my laces the way my parents taught me ever since.