One does not need either a studio nor high- end lighting to make a potrait. Natural light is all around. And artificial light is quite common...flash units, table lamps, overhead lighting LED arrays, neon signs. TVs, phones. Laptop displays. Etc.
We have had the discussion here about the differences between natural light and artificial light. There is a contingent that insists that there is no distinction between natural and artificial, despite the fact that artificial light sources must be manufactured by human beings or there is no light that can be provided by these devices, and despite the fact that there are hundreds of books on artificial lighting.