Ok so I have always thought that calicos, torbies and cats like that were really rare???? Because I ADORE those types of pelts and when I look for them at my local shelter I only see black cats and brown tabbys????
omg no calicos/torties/torbies are actually pretty common. it may be because the cats you get are from the local population, which are all interbred (obv)
red is a neat trait because males only need 1 parent (their mom) to be red, while females need both parents to be red. if a female has 1 red and 1 black parent, she will be a tortie/torbie, and she can pass on her red genes to her own son in return. red can be kinda infectious that way haha. also torbies can sometimes be hard to identify because the colors can mottle and mix really well or they may only have a small patch of red somewhere