Just wanted to put in a counter for what a lot of people are saying in here, if you're looking for a "perfect-clone friend" right out the gate then prepare to be lonely as your tests fail... not because they're horrible people, but because they're a different person with different experiences.

The person litters (like @tiramichu@sh.itjust.works suggested)? Probably see's their entire family litter constantly and never gets comments or maybe even once got reprimanded for saying not to litter to an elder. Just ask them not to when they're in your vehicle, take into account their reaction and maybe have a conversation about it? (personal experience, just let me friend know it was lame and he stopped doing it. But now his vehicle is a roaming trashcan so I guess take what you can get)

You can be friends with people who are different or were raised differently than you, it's actually super beneficial! Now if it's a constant argument or it's turned into a negative experience every time and communication isn't working... it might be useful to move on for everyone's sake at that point.