I am 71 and I have been using Linux-only laptops for 14 years. Pre-Linux days were the dark ages of my computing experience. I wasted so much of my life with Windows. I used to dread those untimely updates that used to ruin my apps and the data. I never seemed to have enough RAM or hard disk or enough processing power. A re-boot took forever. Regular fresh installation was a must. MacBook was a great improvement. But the flexibility and openness of Linux beat the pants off those. An ordinary cheap laptop with a fresh installation of Ubuntu flies like a bird. I never need to worry about big RAM or huge disk etc. I have created my own help files and ways of accessing all options and flags of commands and their examples with just a few clicks and key presses. I love learning new tips and tricks every day even though I know I will never master it fully. I don't waste time encouraging people to switch over to Linux. It is astonishing how much fear there is among even the young people to try a new operating system.