I hope so for your sake. The wattles just seem a little too big and red for 10 weeks to me. But then you are in a warm climate, and sometimes that accelerates development. So there's hope.
At 10 weeks they wouldn't have pointy male saddles yet. That comes after 12 weeks, sometimes much later.
I think the only questionable ones here are 7 and 8. The rest are definitely cockerels. I think 8 is probably a slower developing cockerel, but 7 may be a pullet.