If the family computer is an iPad, there goes any chance of learning to code. This is exactly what the Raspberry Pi guys are fighting against. Not saying what's right, but if you can't write code at home you won't learn how to code, and not everyone can afford multiple computing devices.
Why do all the programmers assume everybody needs to learn to code. There are many other career paths out in the world and if a technological device can inspire passion in a child, you should be happy regardless of what that leads to.
What if an iPad inspires a child to learn math, astronomy, biology etc... To become a future scientist? Maybe a childhood experience on an iPad may inspire a child to study aerospace engineering and become a NASA scientist? Maybe the coders here can write all the software to control the first manned Mars landing based on the engineering efforts of that child?
From many of the "coders" comments, it sounds like most of them don't have children. A good parent will support their child's interest (within reason) not force their own interests on a child.
I disagree with the assumption that the simplification of computing devices will result in in less tinkerers. I believe that the opposite is true, many children will have hands on experience and natural curiosity about how these devices work.
Just let the children be themselves.