It's actually possible that COVID-19 will become the fifth common cold causing human coronavirus. Eventually. But right now, nobody has good resistance to it and that's increasing the apparent virulence.
So, yes, we might be going just there, but for right now we need to keep from getting it . A vaccine will, of course, help, but as there's no guarantee of having one any time soon (or even ever, in the worst case scenario), we all need to get used to wearing masks for a while.