I’m 13 and my strict parents brought me lingerie

I have very strict parents and they won’t allow me to do certain things. But today a package came in from shein. The package came while i was in online school so I didn’t know what was inside. After I finished school my mom came into my room and showed me some see through panties and lingerie.I thought they were for her but she passed them to me and I was like “uhm these are for me?” And my mom said “yes since your 13 now”. Then i said “oh” then I smiled.