Watching porn at parents’ house

I’m an adult and I’m visiting my parents’ house. Unfortunately, I’m still on their data plan for my phone 🤦‍♀️. I know at one point they had all kinds of blocks on the WiFi so you couldn’t use the WiFi and look up porn and if you tried, it would alert them. I just need to be 100000% sure that if I use my data on my phone and watch porn at their house, there isn’t any way they will be alerted or anything like that- right??

I know, I’m super paranoid. I wish I was the kind of adult that could just be like, “yeah I watch porn, so what?” But I’m not.