I have a feeling if it was sports he wanted learn about, hours could be spent. I get it, it’s hard with different interests. But it’s going to take a lot of effort and patience.
As far as short changing your girls by going down the slide with him, I get it. I think the doc will have to take part in this too. When M and I went to the water park or the fair, we would trade kids for a little while. I would go on rides with his son, and he went on with my daughter. They both loved it.
It would be good probably for the doc to take the girls to do something and on that day, you take her son to do something. His choice though. You aren’t going to make him into a man, but let him share something with you. And fake the utmost interest .