Canon T6 vs T7

Yes, that's true that things are different in other countries. However, I would never get a DSLR camera without dust sensor protection. And the T6 or T7 does not have that protection.

I am still using my older Canon T2i (550D) and T3i (600D) cameras with dust sensor protection. I have never had to clean the sensor myself in about six or maybe seven years. About three or four times, I would notice a dust "bunny" in my pictures (from the Canon T3i (600D) or Canon T7i (800D) cameras), thinking that I would have to clean the sensor (or have it done professionally by someone else). I leave my lenses attached to the cameras so dust on the sensor is minimized. But dust still has a way of getting inside the camera. But the dust is removed by the camera in a couple of weeks internally with this sensor protection.

I also had dust sensor protection on my older Olympus E500 and E510 DSLR cameras. Olympus at the time was known for having superior dust protection (so I heard). From my own experience, Canon seems to do rather well in that regard also (for the cameras that have it).

Do you plan to clean the sensor yourself? I understand that a cleaning kit to do that, is not too expensive. But I also heard that if a person makes a mistake they can ruin the camera. I read about it, because I thought I would have to do it. It turns out, I've never had to do it. I believe that the Canon SL2 (200D) camera also has dust sensor protection.

I take pictures almost every weekend and show them on the Show Your Snaps thread. Having a camera that is reliable and low maintenance is important to me. Saying all of that, I hope that I have helped you (or anyone else) think about what better choices you could have made (like getting the SL2), if you plan to take lots of pictures.

I have never have examined my sensors, so maybe I should still clean them. I don't know. But from what I've seen in my pictures (when I view them on the computer), having dust sensor protection seems to work and eliminate any dust "bunnies" that occur. If I did photography professionally instead of just as a hobby, I might clean the sensor myself regularly (in addition to what the camera would do). It wouldn't be worth it to take a chance and ruin pictures for the customer. But as a hobby, this works for me.