When  learning   math,   students   gain   self-confidence   through   time.  
It   grows   along   with  their   understanding   of   the   course   content   and   its   applications.   Math   IS   NOT   like    any   other  subject!    Learning   math    takes    very    long    time.    
From    the   moment    toddler   learns    her/his   first  numeral   throughout   cute   toothless   parroting   of   multiplication   tables,   to   High   School   graduation   and  beyond.

Yes, multiplication tables are due with the third baby tooth lost!
Commonwealth countries are late at the start at least 2 years. Yes, not much is lost. Not yet.
That ‘not much’ amplifies throughout the years.
On top of it, the proper practice routine is never created. The outcome after few years: the final reach of the student is cut short; the ceiling is set lower.
Not that student is unable, she/he/they will be unwilling.
It now requires significant effort for meaningful outcome.