If you have a military background it is completely normal. Beyond boot polishing, how one ties one's shoes can identify their nationality, background and even trade. They don't think twice about looking at someone's shoes.
There is an old method for spotting a US marine: Ask them to change their socks. The guy who takes one sock off at a time, changing one sock before even untying the second shoe, that's a probable marine. The guy who doesn't actually tie his laces, that does a strange wrap-around-then-tuck thing... US army. The guy who skips a few holes in the middle: air force.
Think I am exaggerating? search youtube for military shoe tying vids: https://www.youtube.com/results?search_query=military+shoe+l...
That’s this lacing technique: https://www.fieggen.com/shoelace/commando-lacing.htm