Boot laces

[Old Hob]

I have been wondering in my (many) idle moments why it is that we see so many players having to re-tie their boot laces. I know that in days of old it could be used as a tactical move to give a breather or two but this feels different. People, and a lot of them, seem to be tying their bootlaces because they have genuinely come undone. Is this a common trait of the modern footwear or am I just imagining things (completely possible)?