Socceroos coach Ange Postecoglou wants two things from fans.

He wants crowds to create a more imposing home ground advantage.

And he wants fans jumping on the Socceroos' bandwagon now, not when it's too late.

Postecoglou reckons the Socceroos' World Cup qualifiers - against Tajikistan in Adelaide on Thursday and Jordan in Sydney next Tuesday - are the perfect places to start.

"One of the reasons that it's hard from home playing international football is that everything is against you," Postecoglou said on Tuesday,

"The conditions usually are (against you). The officials are and they're always facing a hostile crowd.

"We need that here. And I want a big crowd here to create that atmosphere.

"We showed it during the Asian Cup: with the right kind of support and conditions we can knock off anyone."

Postecoglou also wants more support from lower leagues, asking them to postpone their commitments to open up pathways for younger players to witness the elite Socceroos.

"If we really want to be the nation where were realistically talking about winning a World Cup, those kind of things should become par for the course," he said.

"Because when we play in Jordan, in Iran, in Japan and in Korea everything shuts down because the national team is playing.

"Maybe at the moment people just take a wait and see approach.

"But don't jump on the bandwagon when it's too late. When you're doing that you're missing the point."

Postecoglou said lower leagues scheduling training on the Socceroos' game night, as in some cases in Adelaide on Thursday night, were harming the game.

"This group of players here, they're the generation of 2005 and 2006 seeing John Aloisi rip his short off - they're Socceroos today because they saw that," he said, referring to Aloisi's famous reaction after scoring the penalty which earned Australia qualification for the 2006 World Cup.

"Whatever these clubs or officials think they're doing, they're denying and killing dreams of kids.

"Ask any kid what inspired them and everyone in this group will talk about that (Aloisi penalty).

"I'm hoping in 10 years time they're talking about the (2015) Asian Cup (win) or maybe what this team does at the World Cup that's how you create new generation Socceroos.

"If you're talking about a club that prides itself on developing young players, there's no better development than seeing their heroes close up, that is what drives them.

"There is players here that can inspire another generation, if they can see Tomy Rogic or Aaron Mooy or Mat Leckie and see how they progressed as footballers, it's a no brainer."