One very good reason not to buy an iPad ..... Nexus 7, the tablet with the display Apple said wasn't possible on the iPad mini. iPad has nothing to make you buy it over an Android device, display speed, apps, etc. Come on Apple, get your innovation brain cells into gear or my next buy will be Nexus.
Ah, the inevitable "Android is better than Apple" comment. Does it really matter? Use whichever you prefer. The first generation Nexus 7 does not have a rear camera, so if you wish to use your iPad to snap shots it can't do it. Personally that's no big deal to me because I don't use my tablets as cameras.
I have both an iPad and a Nexus 7 and there are several apps that simply do not work as well for me on my Nexus 7. This may be because the developers have simply not taken the time to make the apps look or function as nicely. This is particularly true of my recipe apps. However, I much prefer my Nexus 7 for reading books simply because of the size. My iPad is the full size version and it's just not as comfortable to hold for long periods of time. I also like some features of Android better, but not all.
I also have a MacBook Air and it is very easy to travel with. However, I only use it when I need to write or work. I don't open it for social media or to check email or manage finances. It's just not as convenient. I do use it to play the one online game I like and there's nothing wrong with that. Gamers have their place too.
As for the let "older" persons try it first, I would suggest that for anyone. My teenager often wants something until he tries it. He loves gaming and always tries systems out before he buys. It's just good sense. Nothing to do with age.