I have always shaved every day (will actually 6 days out of the week), and never experienced any issues. But, I never really had an issue with cutting myself any more than with a disposable razor or a DE so maybe I'm a bad example. Razor burn and irritation have never been an issue for me either probably because:

1) I don't have particularly sensitive skin, or if I ever did, it surrendered to my relatively rugged lifestyle a long time ago.

2) I have always used "wet shave" techniques including proper prep, lathering and stretching.

I started shaving with a DE many years ago, went through a phase with disposables, and have been using a straight razor from several years now, but I always stuck with my mug and brush.