First you try to convince people that they have a problem – original sin or bad breath or whatever – then you try to convince them that you just happen to have the solution to the problem you made up.
Fossils rarely form and hominids are scarce, probably never existed in large numbers until modern times. Hominids with increasingly modern characteristics ARE found, but creationists refuse to admit it.
In point of fact, learning new things forms new synapses, especially where circuits are present that already have been shaped to hold related information. It’s a “them that has, gets” situation where learning new things increases your ability to incorporate new information.
Not really – hands are a decided help.