I have a 2013 Outback with
I have a 2013 Outback with the identical problem. I've replaced the headlight bulbs numerous times. when I took the car to the dealer for the wiper recall, they informed me I had five bulbs out! Not the headlights this time....that failed again two days later. I could live with this problem if it weren't necessary to remove the wheel liner to replace the bulb, but it is and I'm not willing to crawl around at my age.
This is clearly a design flaw. This is my second Outback (no problems with an older one), but I doubt I'd buy another given this situation.