People only change because of you when they don’t know they’re changing
Yes, you can’t change anyone, if you consciously try to, but no matter what you do the people around you will slowly pick up on you keywords and phrases, they’ll subconsciously memorize the rhythm of your laugh and sync theirs to yours, they’ll look at the pigeons you feed with more kindness, they’ll see the cats on the street differently because you love your cat so much, they’ll recognize bits and pieces of you in other people and treat them with more kindness because they think of the love they have for you.
You can’t change anyone, you can just be the best version of yourself and hope the people around you gravitate towards that. You’ll never get anywhere by picking apart someone’s every visible flaw to force them to change.