Indeed, there are dangers. But I'm of the school where I try to instil a sense of awareness and airmanship from an early stage.
However, they will always get you somehow. For example, a danger arises when a check list has become so familiar that it is easy to pay 'Lip Service' to it. I was sitting in the back of a Tucano and watched a fairly advanced student fail to raise the gear after a touch and go, despite calling out the check.
Sure enough, on the downwind leg, he moved the gear lever as required to by the pre-landing checks and raised the gear!