Davies believes the likes of Marc Albrighton, Eric Lichaj, Barry Bannan and Andreas Weimann have the same hunger and desire to succeed at an early age, after watching them work their socks off in Portugal during the pre-season tour.
He told Villa's website: "I think they have to believe in themselves - and I think they do anyway.
"They shouldn't be going to places like Portugal with the squad and then when they get back think they'll just be in the reserves - they are not really doing themselves justice.
"But I don't think the lads are like that here.
"You have to go on pre-season tours with confidence and think 'I'm going to do as well as I can and give the manager no choice.'
"With the senior lads, we are friends off the pitch but we all want to play. They should have that same hunger from the start.
"It's easier to say about the young lads that they are just excited to be in the set-up. But I have never been a believer of that because I've played senior football from an early age.
"I see that in our younger lads - they want to break through and break into the team and that's encouraging to see."