For similar reasons are people watch movie premieres and red carpets. For a similar reason as paparazzi mags exist. Its just famous people dont have the politicical weight of the royals. So watching them is not un-useful. I dont follow them but somethings its good to know. For example knowing the queen didnt show up causes one to know something happened. If there is a health issue..might be that. A health issue with the queen means some market moves, some changes in gov and staff. If we follow those we could see which companies would lose a bit of value but would over time as people, markets and consumers get used to a new situation and we might make money out of it.

If Charles had issus he are behind that would means those issues have a huge LOBBY type of force behind them. Even it ot a lobby just the prince at the time and to be king LIKES, truly LIKES these issues so he will talk about them to those people there and those people make the legislation. That is the importance of knowing a bit about them.