traveling to guatemala with my teen sister: do we need a form?

Last summer, I decided to take my 15-year-old sister on a trip to Guatemala—just the two of us, no parents. We were both excited and a little nervous, especially since it was our first time traveling internationally without adults. I’m 19, so technically an adult, but I kept wondering if that was enough for border officials. We spent hours researching online, but the information was all over the place. Some sites said we’d need a notarized letter from our parents, others said just a passport would do. I kept picturing us stuck at the airport, passports in hand, but getting turned away because we missed some random form. It’s not like we could just call home and fix it on the spot! Has anyone else tried traveling with a younger sibling across borders? Did you actually get asked for a parent consent form, or was it smooth sailing? I feel like rules change depending on the mood of the officer or the country. It’s stressful enough planning the trip, but worrying about paperwork at the border just adds another layer. If you’ve been through this, what did you do? Did you run into any surprises at customs? I’d love to hear real stories, especially if you traveled somewhere like Guatemala with a teen. #familytravel #travelquestions #siblingadventures #Travel