The button/things inside gives trouble to the user when spoilt.
Velcro Straps on shoes:
Strengths:
Helps children that does not know how to tie shoelace
Tightens, loosens shoes
Easy wearing/removal
Quicker than tying a shoelace
Popular for medical reasons, difficulty bending down, etc.
Weaknesses:
Velcro can stuck unwanted materials in it ( removing them is a messy task )
Does not have the "classic look" (adults hardly wear those shoes)
Loud sounds produced when unstrapping.
Velcro might lose its stickiness.
Softening of plastics.
Lace-amatic: Shoe Lace Tightener:
Strengths: Fast lace tightening, instant knotting & quick shoe removal
Problem: It might drop out if its due to the mischief of friends as they still can pull the knot. Knot might untwist if mechanism is faulty over time.
Quick Snap - Boot fasteners:
Problem:
It is rather troublesome to fasten many tighteners, as every cross between shoelaces must have a tightener.
Nathan Velocity Laces:
Problems:
There will still be some string that are not in used, even if you tuck it in like in the picture, it still might drop and you might still trip and fall.
Moreover, it does not look nice with two strings budging out.
Shoelaces come off easily due to the mischief of friends, poor tying of the shoe or the shoe might not be as tight as the user wants it. Untied shoelaces will cause people to trip and fall and give difficulties to children who does not know how to tie a shoelace yet. People with arthritic fingers will also have difficulty tying shoelaces. It is also very troublesome to the user when his shoelace is untied as when that happens, the person would have to bend down and tie their shoelace again.