@Dutchess_III Some smartphones have 16 Mega-pixel cameras that are pretty decent, and comparable to many sub-$200 cameras. While a smartphone camera won’t compete with a Canon of comparable cost, I doubt your Rebel has many apps available, and the call quality on it probably sucks.
As for needing the smartphone for grocery shopping, some stores have their loyalty/rewards program hooked to an app. You like coupons? Forget paper coupons as, when shopping at certain stores, fliers have gone the way of the 8-track.
Capacitive screens have varying degrees of sensitivity, and there are some that even I find a bit too touchy; my wife’s old Droid 2 was one of them. But the big thing is that, unlike keys or the resistive screens in cheap tablets/phones, a capacitive screen requires just a gentle touch. If you try pressing them, you’ll flatten your fingertip and it’ll be read as you pressing half the screen at once rather than just a specific spot corresponding to just one key. Just a gentle caress is enough; you’re trying to tickle it, not poke or scratch it!