Except that's it's typically used a plural. Referring to one person as multiple is weird, awkward and clunky. Or, you're making a multi-personality joke. I thought we were at the point where poking fun at mental illness was a no-no? That's micro-aggression behavior there on your part. So sure, if you don't think about, it works. Just like saying apple instead would work if you don't think about it.
Yes, languages differ. Why anyone still uses accent marks is weird too. Oh well. A few people forcing their own ideals on the masses isn't right either. Two wrongs don't make a right.