I have a very ordinary, English-of-Greek-origin name. Spelled in the traditional way, couldn't e simpler, really.
For over twenty years, ILs have mispronounced it. For twenty years, I and my husband have periodically corrected them. Not a huge thing, granted but it grates every time they say it wrongly.
AIBU to slightly mispronounce their names just a little, e.g. Sarah becomes Sorah, Jim becomes Jom? Childish, I know, but it is pretty much the only thing I have asked of them in twenty years! Other family members ask for and receive special food despite having no real grounds for this or meals served at a particular time despite having no children. I'd just like them to say my name without me mentally wincing!