They would start with some studing of the basic principles of the game , some rules , later make a deposit , then play some games in real money
fixed limit . They can resume studying strategy and in depth play , and when they feel ready they can try some no limit .
But by then , they would be ready to play some play money or freeroll games , for more exercise , as they could then distinguish the right poker from the donkish , so they would play these and try to get better (in some play money tours it is possible) or play some frerolls differently for bankroll reasons, and they would know that the way they play at them is far more loose different than the normal , so they wouldn't get affected a lot by these .
On the contrary , if they started from freerolls first , their play style and game would get affected in a bad way .