Amateur for fun only. Last trip was two years ago flew into Puerto Vallarta had drone in my carry one backpack with no issues, same with Cabo. US carriers. Going back in November fly into Puerto Vallarta hopefully with Skydio 2 as I just sold my mavic pro. I had a small travel case, Skydio not as compact but should fit in a backpack judging by promo video. I never fly above crowds and just use common sense and laws aside I don’t really think Mexican customs care if you don’t give them a reason to.