People will approach tourists a lot like this in central and south america, but the end game tends to be to take the tourist to an inn or restaurant where they get a commission for taking them.
I've never gone with anyone anywhere but very public spaces. But I actually have found some real gems tucked away off the beaten path this way.
A friend and I took a day trip to Morocco many years ago while backpacking through Spain and experienced this. A local guide approached us who came across as pretty legit and had a driver. We had a good time being shown around to different stores and it was pretty clear that he was getting a kickback from the places we went. Had some nice mint tea, and a pretty good meal later.
There was a slightly dark time in the middle though, where my friend and I were sure we were going to be mugged and left for dead when we were driving further and further from the city. I've never experienced anything quite like it before or since. We both looked at each other, and in an instant with a single expression we were both able to convey that "I love you and we're going to die". We were totally relieved when it turned out they just wanted to show a scenic view by the sea, while showing us a lot of very rich mansions along the way.
Was totally surreal, though, and I'm not sure how lucky we were.
Danish Louisa Vesterager Jespersen (24) and Norwegian Maren Ueland (28) were killed and decapitated by ISIS terrorists on a trip to Morocco in 2018. They were found near the Atlas mountains. The murders were filmed and put on the internet. 18 men were since arrested by Moroccan police and charged with terrorism.[1]
Somehow factual information like that is always downvoted, but criminal and terrorist activity is important information when considering where you want to travel in the world, so you should take it very seriously.
Case in point, I travelled with my friends through Serbia during the early 2000's. Now, we'd spoken with our country's foreign ministry, and they told us that it was relatively safe to travel in the North of the country. At the time, we were adviced to avoid the South of Serbia because of small gang clashes still being ongoing. We avoided Romania as well, since a lot of car jackings had been reported at the time.
After driving for a very long time, we got tired, and parked at a forest road in the darkness. It was pitch black, so we figured no one would come there. But after a while, I heard a car stop down at the main road, and two guys moving closer to our car on the gravel. This prompted me to reach for a small screw driver I had laying around, just in case.
When they arrived at the car, they knocked on my window, and peering to the darkness I noticed that they were actually police officers. They wanted to know what we were doing there, so I explained to them that we were just trying to get some sleep for the night.
Then they asked me, "Did you see the boarded-up gas station further up the road?" I nodded, and he continued. "Yeah, well, last week a gang came by there and shot the whole family dead, mother, father and two kids. That's why the place is boarded up. Listen, guys, this place isn't safe. So please come with us, and we'll show you a lit parking lot in the nearest town. You can sleep safely there, under the lights."
Needless to say, we accepted their escort, although it was far more easy to sleep in the darkness rather than under a street light.
Then there's the story of my boss who ignored advice to not go to Egypt during some troubled times, and ended up in a firefight as the bus in front of him was lit up by a hail bullets. He thought he was going to die, and he very well could have if he'd gone with the front bus.
Morocco has a very mean and torture-happy secret police, and tourists are one of their main sources of income, so it’s very unlikely that anything particularly bad will ever happen to you, the risk for perps is too high. Cash, though... I was basically extorted by some guys with aggressive monkeys in the middle of Marrakech.
Spouse and I got hooked like this when we visited Beijing some years ago. We could actually tell what was going on, but our "guide" was a friendly university-aged girl who (at our request) took us to a couple of local art galleries and a wonderful restaurant. She may have gotten a commission and definitely a good meal out of it, but we actually had a fine experience.
I've never gone with anyone anywhere but very public spaces. But I actually have found some real gems tucked away off the beaten path this way.