Interesting idea about having to get a license to have a child. You would have to prove that you have the financial resources to support a child (taking into account any other children you may already have, and a dependent spouse if applicable), and you would have to prove that you're a fit parent. Credit reports and tax returns can be used to evaluate the first, and a psychiatrist or psychologist can evaluate the second. Single parents, married couples of opposite sex, and committed gay/lesbian couples should all be eligible to apply. A woman who gets pregnant without having a license has 3 choices: abortion, adoption, or shape up in the next 9 months.
You should also have a license to get a pet, particularly a dog or cat. I'm not talking about just registering your dog - I'm talking about proving that you can take good care of dogs and/or cats, that they will be well fed, they won't be allowed to run wild, any existing pets you have get taken to the vet when necessary, etc. One of my neighbors lets their 2 mutts run wild (illegal) and yesterday we had to call animal control because they threatened my husband.
All children in school should be required to learn a second language early on (none of this waiting-until-high-school $h!t, it's far too late then). At the same time, anyone coming to this country and staying for more than a few months should learn some basic English (they don't have to be fluent, but they should be able to understand enough to do their jobs, follow directions in an emergency, etc), and their children should be taught English in school; brand new immigrants can be taught things like math and science in their own language, but with a goal toward eventually transitioning them to classes taught in English.
Prescription drugs should not be so damned expensive!! So many senior citizens do without because Medicare doesn't cover the drugs and they can't afford them on their own.
And I think the drinking age should be 18, not 21.