Aside from criminals and oblivious people who carelessly disregard the things they do that would later have warrants issued for their arrest. Why isn't there any system in place that notifies people whether or not they have warrants?

The only way to find out, least in the US, is to call police departments or certain county offices. But almost nobody would want to do that, so why isn't there a way to like send a text or an e-mail or even a letter in the mail saying "hey, something happened involving you and a warrant has been issued, might want to do something about it".

I mean sure, if anyone got that notification, there could be chances that they'd run. But, that's all the more reason to add another charge once they are caught.