What will happen if I turn off My Photo Stream on my Macbook?

I have been having issues lately with my phone (iPhone 6, iOS version 9.3.3) where I constantly get notifications saying "Almost out of storage" on my phone. I know where to check which apps are using the most data, and Photos is the highest on my phone. While I do have a lot of old photos I need to go through and remove, I have recently noticed that My Photo Stream is bringing pictures I save to Photos on my Macbook Pro (version 10.10.5, Yosemite) to my phone which makes my phone quickly run out of space. I tried deleting photos to free up space which briefly solved the problem, until I noticed pictures I recently saved to Photos on my Mac are appearing on the phone, eating up all the free space I d just cleared moments before. I want to turn off My Photo Stream to stop this from happening, as I don't want those pictures on my phone, but I'm afraid I will be ending up deleting those pictures altogether. What is the right thing to do to solve my issue?

Can I sell a phone that I accidentally reported missing or stolen?

About a month ago, I was under the assumption that I had lost my entire purse. This included my debt card, iPhone 6s Plus, etc. I ordered a new phone that arrived to me within 2 days. However, a day into activating and using this new iPhone 6s Plus (a total cost of 200$), the purse I had believed stolen was returned to me with my old iPhone Included. I believed it was too late to return the iPhone 6s Plus I payed 200$ for to my insurance considering I had already activated it. Is it possible for me to sell my old iPhone 6s Plus even though it is reported lost or stolen? Is their anyway I can get that undone so it is able to be sold? Or is it fine to be sold as is under the sprint network?

I went to this Coffee shop with WI-FI and only Apple products would connect. Why?

I went to this place to do homework on the go, and for some reason my HP laptop (4 months old) would not even discover the WI-FI network. I went with a friend and her iPhone would discover connect to their network. People around were using Mac books and their internet was working fine. My laptop is always updated and I have internet at home and school.

Can I track my laptop even when it isn't connected to internet?

I have a 2016 MacBook and it was recently stolen, I was wondering if it was possible to track it even if the "thief" wasn't connected to the internet. Plus I don't have any extra anti theft things installed. But it is installed on my cloud so I think I should be able to view it on my iPhone…

Doss it bother you that people (especially kids) are obsessed with technology?

I hate how people are obsessed with technology now a days! I even got obsessed with technology for a while, but i'm trying to hard to change, i don't want to live this kind of life. In the 1950's and decades like that everybody was so life like, it was adorable. Even when I was growing up in the 1970's people were still life like, In my house I life with my husband, my 2 daughters and my niece lives with us and our house is very very quiet, no one really talks to each other. The only sound in our house is keyboard typing, mouse clicking, and that noise when you plug in an iPhone to charge it, everybody is in their bed under the blankets on their phones, I constantly go in their rooms and see them under the blanket and I see a light coming from the blanket, their screen. I'm not the ones who bought them these phones, my husband did and I was mad about it. It's becoming too much, I really wish my children were growing up in like the 1970's when I grew up or something, they are social media obsessed kids, they depend on technology for everything. I constantly cry because of what is happening, it seems that everyone is with technology now, even when I go to a super market or something I see kids on phones. My niece is only 4 years old and her mother bought her the new iPhone 7 for her birthday back in January. I wish I was born in like 1895 so I would have been dead already. Does anyone else feel this? Does anyone else hate modern technology? Modern world is so boring and stupid