For probably 99% of people ..... using their cameras for photos is good enough.
Not for me who can take up to 1,500 photos in a day.
I have a friend who is oftentimes with me at live music. He has one of those $1,200 iPhones. He always takes pictures of whatever musicians we are seeing live. He tells me he relaxes about his picture taking when I am also there because he can rely upon me taking far superior pictures than he is able to do.
Again, my camera is not professional grade. It is a fixed lens camera that cost only $700.
Last week at softball practice there was another player who had with him $4,500 worth of camera equipment. Definitely took better pictures than my camera but I stick with mine. Not because of the money involved but because mine is actually more versatile and is far less equipment to lug around. Just my camera. No extra lens.
Here are examples of a picture of a camera taken by his camera (of me!) and one taken by my camera the same night. I was immediately struck by how the colors of his pictures seemed to be richer than mine.

- 346499611_117887781299789_3936413430893784522_n.jpg (118.78 KiB) Viewed 1181 times

- 346444738_1229005981154263_2590697704036249689_n.jpg (623.54 KiB) Viewed 1181 times
Finally, I thought many of the other items on the list would be of interest to you and all the many technologically oriented people in this forum.