18 is one of the best years in life for it signifies that you are now able to do adult things while acting like a child. Happy Birthday!
Happy 18th birthday! You’re an adult now. Now you can do everything legally you’ve been illegally doing since you were a kid.
Welcome to a free world where there are no rules on how late can you return from a party and no laws of being grounded. Happy 18th birthday.
Happy birthday. Don’t be sad you’re a year older. Keep your chin up…if you can! Well, you know what I mean.
Even though you have this year and next year to be a teenager, you’re done being a child. Congratulations on becoming an adult.
Happy Independence Day. Today, your life officially becomes a democracy as it receives freedom from the dictatorship of your parents. Happy 18th birthday.
Stop Aging. No, seriously, stop aging. You’re a perfect age right now. It doesn’t get any better than 18.
Congratulations! From today, you can do the things you wished to do when you were 12! Wait for another 7 years before you can do the crazy things you’re planning to do today!
Happy 18th birthday. You’re officially at a stage of your life where you’re no longer eligible to play with kids and not mature enough to hang out with adults.
With great regret and unfathomable remorse, I’m sending this message to inform you that your sweet childhood has expired!
Welcome to adulthood! Did you know that things they called ‘fun’ back in the days when you were 12, are now considered as possible felonies with lengthy prison sentences?
Alice Cooper wrote a song about you, and I think you are just now old enough to listen to it. Enjoy my recommendation.
Congratulations for finally becoming an adult. Maybe you want to start behaving like one too? Happy 18th birthday.
Eighteen is a tricky age. You have the freedom to do everything but the money to do nothing. Happy 18th birthday.
Happy birthday! At this point in your life, you should really think of making a new start. You should really start lying about your age.
Just because you are an adult doesn’t mean you don’t have to listen to my advice. I suggest you have a happy 18th birthday.