Hello- I am about your age and about to have my 4th colonoscopy (polyops were found and 1 ugly one they have to keep checking on). I would say that the worst part for me is the no coffee or eating the day prior. I can handle the clean out - start early & stay home! Have a pad, towel, or Depends for night available, just in case. The procedure for me has always been smooth. My mom stayed there one time, my husband the other times. They were not let into my recovery area until I was pretty much alert and dressed. No issues. You might be a little "off" but not goofy or anything - just wobbly? hungry? I recovered nicely every time except for 1. I was so pumped full of air and then drank some specialty coffee with milk, so I ended up with stomach pains. Might be a good idea to eat bland. Good luck and try not to worry.
So, I can give you my 411 from accompanying my husband two times for his coloscopy. He says the worst part is the liquid you drink the night before. With regards to the procedure, no discomfort. However, he also has NO idea what happened in recovery. That's the good news. You will remember nothing. The first time he had it done, he laid in recovery and with assistance by me, got dressed and I was able to get him to the car just fine. He said nothing to strange or silly. He DID have incredibly loud flatulence. As did all the others nearby. It's a loud place in recovery for that reason. Toot city.
The second colonoscopy was more difficult in the recovery room. My husband was indeed out of it. He did not want to get dressed but when it was made clear by the nurse that it was TIME, he got his clothes halfway on refusing assistance and wanted to just stop here. No Bueno. Had to insist he let me pull his pants up. Then he had difficulty walking. So, they got him in a wheel chair and met me at the side door and helped him into my van. We got home and I helped him into the house. He slept the rest of the afternoon. He had chicken noodle soup for diner and was becoming more himself as each minute passed. Mostly was just sleepy. Then bam, fine.
Nothing too dramatic. And you won't remember it. But you WILL need someone to get you there and help you. And if they love you, they won't judge you. :>)