My mom doesn’t like TDI

TDI has always been one of my favorite shows, as well as my brother. I’m much younger than my brother so a lot of the shows he grew up watching weren’t “appropriate“ for me to watch. but as I got older my mom kept telling me how she didnt want me watching this show. my brother grew up watching the show and my mom never really had a problem with it. i remember two years ago I was rewatching the first season, and she walked in on me and told me she didnt want me watching this show (mind you im 17 at the time). is there something I’m missing? I’m 19 now and I can’t seem to understand what about this show would make my mom think it’s too inappropriate for me to watch. 😭