Now that I think about it, I know many people, including me, who don't know how long the support for their smartphone is. At some point I guess you just stop re

Now that I think about it, I know many people, including me, who don't know how long the support for their smartphone is. At some point I guess you just stop receiving security updates but how would a regular user know and notice this means they lost security support? All people I know use the phone as long as it works or they just want a prettier one with a better camera. I've never heard someone say "oh shit, my phone is off support, now I have to buy a new one". This being said, is someone implying having shorter support for a phone increases overall sales?