Please tell me if im just being a brat ...... so my auntie asked me to watch my grandmas best…

Please tell me if im just being a brat ...... so my auntie asked me to watch my grandmas best friend's grandkids and i said yeah as long as she brings them food to eat my aunt said you should just go over to there house im like no i never went to her house before i never met those kids before i would rather them come to our house so i wont be alone and theres other kids here from them to play with and she's giving me a hard time i watch everybodies kids in my family or friends and i never had to stay at their house i understand if im getting paid and its like a job but im doing it as a favor and im not going to be uncomfortable in a strangers house with kids i never met when i can be at home with other people around to help me if i need it and she asked me to do it for more than one day i feel like that's the best thing to do i understand thats their home so they might be more comfortable but i wont be i wont know where nothing is etc