im gonna vent here because i have no one

i don't understand how my father does not get mad at my younger sister for not knowing how to make a sandwich at her age (15) and when i was jokingly complaining about how she can't make a sandwich at her age my father screamed at me???? how is it so called treat every child the same if he scolds me for joking while my brother is literally a spoiled brat who only asks me for wifi. theres so much more to say about my father not treating me the "same" but i dont want to say it here. or maybe im just being sensitive 😂