I wonder if the people downvoting you are misunderstanding your comment as saying “nobody should be allowed to call in sick for any reason, ever”.

The concept of sick days is ridiculous. Being sick isn’t predictable, so employers obviously shouldn’t be allowed to artificially limit the days you’re allowed to be. It’s a broken system that allows for such things in the first place. If you’re sick, you’re sick, and your employer has to accept that. If they don’t want to take that risk they should employ a robot.