Rant No.1 - Age ratings in shows in streaming services.

Ok, im 13 years old and i want to watch "How to get away with murder" in netflix. So i just casually watched it (im still on episode one) while my mother was teaching my younger sister. As soon as i played the show, my mother reminds me that it has sex scenes. from what i saw it was rated 13+ so i thought "Hey! i should watch this! nothing r18 here right?" but NO. THAT AGE RATING GAVE ME FALSE HOPE. Actually this was not the first time i experienced this. Oh nono, i experienced this while my mother was watching "Ugly Betty". Everytime i go outisde my room i can see the r18 scene playing on the big ass tv while i was getting water. AND THIS HAPPEND EVERY TIME. I JUST WANT TO GO OUT AND ATLEAST DRINK WATER THEN SUDDENLY MY MOTHER WOULD SAY "Angelie don't look at the tv" LET ME LIVE IM TIERD OF THIS