Sometimes trying to explain something to an elderly person is basically like beating your head against a brick wall.
No matter what you present as an important argument they counter it with the same statement or opinion.
This is the complication I have been facing recently. After university I moved in with my Grandmother to save currency while I paid my student loans plus looked for a proper working position. This was helpful to her as well because I helped her by running errands plus helped with chores around her residence. As I was looking for a job I kept seeing ads for a local cannabis farm that was hiring a bunch of new workers. I figured I could do this for a period of time to help pay down my loans faster. They were starting people out above minimum wage plus I wanted to look into it. Well, I made the horrible mistake of mentioning this to my Grandmother plus I might as well have told her I was going to rob a bank in our community. She started spouting about myself and others being a team of drug dealers plus that she would not allow any of that in her residence. I tried to explain that it was a legal corporation plus that the marijuana farm where I would be absolutely working only grew cannabis for people suffering from medical problems. I also tried to explain the difference between what you are able to buy on the street corner plus what is available to individuals to help with tons of different symptoms associated with their actual conditions. Again, she said that she would not condone anything that had to do with growing pot plus that I would have to get a place of my own if I decided to go for the job.