Many of the mirrorless camera makers will not be around next year, or they will give up the line. Sales is tanking, and that means no upgrades or customer support.
When buying a new camera, you need to look at the whole package, body, lenses, support, and availability of accessories.
I'd say hold off on any mirrorless purchase and go for a low end DSLR. Canon has the advantage because so many used lenses are available, and a person on a budget can add lenses fairly easily. Nikon also has a lot of entry level bodies and lenses, but their service and support is only slightly better than Sony, which is almost totally non existent.
Lets face it, cameras occasionally need service, and waiting 3-6 months for a repair makes a owner very unhappy.