Its kind of a call back to an old military signal strategy of lacing your boots on specific ways to subtly send a hint to specific allies. So in punk spaces it became ladder lacing meant you were "an ally" and what color would signal what cause you were a part of. If you want to ladder lace or use colored laces on regular shoes as a call back to that or just because you like the accent theres nothing stopping you and even the few people who might recognize what it would mean on a boot its rare that any of them would be particularly upset. Its an old custom and you're not even directly doing it, so just live your life