Better Late Than Never
A person's level of knowledge does not necessarily reflect their inherent intelligence. Many individuals are intelligent but lack formal education for various reasons, which doesn't diminish their intellectual acumen.
Conversely, some people may not possess innate intelligence but can appear knowledgeable due to their broad range of information. In the case of the OP, their inability to tie shoelaces merely indicates that they were never taught this skill – nothing more.
