Well, #1, parents are always strict with their first born, you know, it's their first everything, by the time the 2nd one rolls around you are less paranoid and too tired!
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I'm not a parent, but I'm 19, and do not rely on my parents any longer. I used to get in trouble, once in a while, but I was always a very good, trustworthy kid, so by the time I was 16, they knew I wasn't going to go down the street, do x, then go smoke crack on a highway and die...nothing like that. My brother is an *******, and I know that guys mature a lot slower than girls so...I'll give it to him a little. My moms biggest mistake is letting him take control. He is bigger than her, so he may be intimidating...but he's 16/17...and she's 45. He would never hurt her, I know. She ALWAYS, always gives in...you can't act like a pushover to your kids. She was always telling me that she couldn't stand the *****ing and moaning so she always gives him what he wants when he wants. My dad did it too. My brother is now 17, never worked a day in his life, straight up said he had zero desire to, yet he wants to move and be alone this year? haha. Very spoiled kid. Your kids go to school, and your kids sleep...they won't hand over their stuff, you TAKE IT.