Agree, jaimeelsabio "People who stand in front of a spot that everybody wants a picture of, takes 30 selfies, then reviews them without moving out of the way so others can get a shot. They then have to take additional photos since they didn’t like the original ones." I blame Instagram and the rise of so-called "influencers."
At Machu Picchu, there's a particular spot near the "Watchman's Hut" where one can get the iconic view of the ruins. When we were there, a young woman was getting her travel companion to take multiple photos of her, while we waited. We were first in line, and by the time she was done, there must have been 15-20 people waiting behind us. Did she move aside once she was finished? She did not. She took the camera from her companion and SAT down on the coveted spot while she looked through the images. Sigh. Finally, I stepped around her and posed so that my husband could snap a pic over her head. At first she kept floating a scarf (that she'd been using in her poses) up above her head, but she soon quit, and we took our few pics and moved on. But really. How rude!
Another time, on Bartolome Island in the Galapagos, there's a climb to the top where one gets a stunning view of Pinnacle Rock in the caldera. A young couple positioned themselves right in the corner of the viewpoint and spent quite a bit of time taking selfies and looking at them. It was difficult for anyone else to get a photo that included the pinnacle without also including the couple. Some of us waited for a bit, but my DH and I gave up and started looking at other things. The tour guide noticed, and offered to take our photo in the spot before we had to head back down. He asked the couple to move. :)
Usually, I'll try to just shoot around them or from a different angle, even if I don't get the "perfect" shot, but there are times, such as the ones described above, when this isn't possible.
What's wrong with roller bags, Mister E? I'm a 5'2" 65-year-old woman. I travel light, but even a light-ish carryon is too heavy for me to carry for any distance without paying for it in pain, afterward.