I'll have to put in my 2-cents worth here on the bathroom/bathtubs. We have traveled for over 52 years, he being a career soldier and living in Germany and Japan, and Singapore for a total of over 23 years overseas, and we've been overseas every year since retirement in 2001, sometimes 3 x a year..
In all the places outside of the US we traveled, the bathtub was very high off the floor. I am used to that. But, now that I am 73 with one knee replacement, and two hips that do not like to work due to arthritis, and balancing problems, despite 10 years of workouts at the gym 3 x a week, I have a very hard time getting in to the high tubs, and getting out is even worse. Not having a slip-proof tub adds a whole bunch to the "worse".
We have experienced this in all of the escorted tours we have taken with GCT. On the half shower door, I found I must move the door out of the way, straight out to the room, then pull it back in once I am upright in the tub. I fix the shower head so the water hits just at the end where the door is, so I can turn it on after I am in the tub. Being over 6 ft and stocky, my husband can't actually fit between the door and wall, so he has the water hit about the edge of the door, thus, getting water on the floor as he bathes and drips.
My husband usually showers before me and he has a worse time than me due to 2 knee replacements and a balance problem. He does get the floor very wet, so he puts his towel on the floor for me when he is finished with his. If we have extra towels, I will put the bathmat in the tub so as not to slip in the tub. Once on our recent trip to North. Ire./Ireland, at this very special, beautiful hotel, with a very beautiful appointed bathroom, I was not able to grip the tub at all because the top of the tub was not flat, but had curves on the top that I couldn't hold on to it. I learned not all rooms had this beautiful tub, but most women complained about not being able to get in the high tub. I tried and tried to get in without falling, or hitting the half shower door. I ended up calling Housekeeping for more towels and a foot stool. They didn't have one so they brought me a stool like they use in libraries, the round one gray with black top. That seemed like it should work, but I couldn't step up onto the stool, it is too high for my legs.. there were no handrails to hold on to once I got on to the top so I couldn't use the footstool. I tried everything. We would have changed rooms but we had already unpacked a lot of stuff due to multiple stay And, rushing out just after check-in for vicinity walk, then dinner, and I didn't check out the "mechanics" of the shower before we left. So we didn't want to change rooms. I finally managed to get in the tub by hugging the sink countertop, a bathmat in the tub, his towel on the floor, the door swung out wide and climbing in. My fear is breaking that door if I accidentally hang on to it or grab it if I fall. Yes, it is adventurous to travel, but I finally figured out how to handle all this and ask for more towels for these kind of situations. Some people had showers only, but we never were able to get one of them.
My suggestion for GCT/Program directors. When a hotel offers "shower only" rooms to some of the people, maybe the program director can suggest certain of his/her travelers who most might need a shower only room be given them and the "fit and well" people given the rooms with the bathtub. I don't know, that seems a lot to put on a program dirctor but again, it's my safety I'm worrying about.