1It can be stressful
3They can be brats
4They'll spend all your money
5Overpopulation
6They cry a lot as babies and little kids
9If they drop out of school, they'll have to live with you
11They will ruin your life forever
12You'll most likely clean up after them
13They could be a criminal or serial killer
14If they get in trouble, it's your problem
15They are annoying
16They could become bullies
17Dealing with boyfriend/girlfriend relationships
18They throw tantrums
19They will not listen to you
20They cry
21You're responsible for their life
22Your life, as you knew it, is never the same.
23You can't travel or go on vacation
25You can't give them back