For one's own peace, one should forgive others. Our lives flow through so many mistakes. There are many who repent after realizing their mistakes, and try to correct them.
Or aiming to avoid repeating that mistake. Exceptions are some people who never want to admit their mistakes. Maybe they don't want to admit it, thinking that admitting they're wrong will make them feel inferior to others.
But admitting your mistakes is also great. It is painful for oneself to harbor anger and resentment towards someone. So I think if someone realizes their mistake then they should be forgiven. Forgiveness brings inner peace. So we all should possess this quality within ourselves like your writing. One should forgive people for one's own peace and one should be careful that others do not harm oneself.