When it comes to mirrorless, it's actually one of the first systems I recommend to people. The reason I say this, is only a fraction of people I know (outside of ausphotography) who buy or have bought DSLR's are actually photography enthusiasts so none of them will ever really benefit from the advantages that a DSLR would offer over a mirrorless camera and the images produced are likely to be better because a mirrorless with higher quality lenses is more affordable than the DSLR equivalent so they could probably afford to get better image quality for the same price.

As for personally, I have two cameras, my Full frame which goes with me most of the time (excluding work, outings to movies etc) and my mobile phone which has a decent enough camera for what I need when I don't need a DSLR. I have a couple of small point and shoots, but if I am going to take them, I'd rather take my DSLR or I'll just take my phone.