You Are Neither Old Enough Nor Young Enough to Enter Legoland Alone

Children must be accompanied by adults and adults must be accompanied by children.

Screenshot via Warner Bros / Youtube

Here are the admission rules for Toronto's Legoland:

Please note: Children 17 and under must be accompanied by an adult supervisor 18 years of age or older. Adults (18+) will not be admitted without a child, with the exception of Adult Only Nights.

So when you are 17 and 364 days old, you need an adult with you, because you are still a baby. But the day you turn 18, you need a kid with you, because otherwise you might be a pervert.

Nice.