Comb turning red at 3.5 weeks for silkie

we have four silkie chickens, and one of them i’ve noticed is already turning red and they’re only 3.5 weeks ( 4 weeks on friday) i’ve added our others in photos 4-6 but it’s kinda hard to compare because he has a straight comb where the others don’t. sorry i can’t get a better photo he’s happiest underneath everyone 😭does this mean he’ll be a rooster? i know sexing silkies is weird and that they’re too young to be sexed right now but i mean it looks a lot more red in person