Keith
The best camera is one that still works!
I am sure those are great cameras, but remember the OP is an elderly gent with poor eyesight, and slow focusing fingers, trying to photograph quick little dogs and children, so he is interested in an autofocus camera to increase his keeper rate.
Poor eyesight in low light has been a curse for a while now and yes the fingers aren't what they used to be ... I think the connection between the brain and the body's extremeties must deteriorate with age ... like old copper wire that eventually starts to build up a resistance. Did you know that that this is the reason a lot of old (especially British) cars tend to have rather yellowy headlights in their dotage if they haven't had a full rewire! 😛
"Elderly Gent" ..... 😱
That's harsh ... but I've just checked my birth dertificate and I fear you may be right! All I can say is thank god there are eighty something year old 'go for it guys' like Ted white on this forum to stop people like us in our mere fifties feeling sorry for ourselves! 😀