I'm 2nd Oldest Child They Developed Trickier Rules T-ShirtMachine wash cold with like colors, dry low heat As the second oldest sibling you already know the rules from big brother or sister so parents need to get cleverer to outsmart you. Other matching shirts for older middle younger brother sisters available under the brand name. Great family gift idea. I'm The 2nd Oldest Child They developed Trickier Rules is a gift idea you'll love for a family with lots of siblings. Younger, older brothers or sisters;