How do kids not choke on cheerios and rice crackers and stuff (like swallow it down the wrong hole)?…

How do kids not choke on cheerios and rice crackers and stuff (like swallow it down the wrong hole)? I know cheerios say not till 7 or 8 months so I havent tried them yet but theres a rice cookie that says 6+ months where like they can gum it and it just turns to mush so theyre not swallowing chunks and he still starts to choke on it..