DianaPrincessOfThemyscira I completely disagree.
We do not wash our hands with thirteen year old children and let them eat what they like, go out wherever they wish, sleep all day game all night. No. At thirteen a child is just that, a child. What you are describing is a much older teen/young adult when they hit 17/18 and have full and complete understanding of how to care for themselves properly, and what the consequences will be if they don't. Thirteen is much too young to simply let them walk around in unwashed clothes as you have suggested.
Do you even have children of this age? I don't think so. You seem to be completely removed from the reality of raising a child of this age.
Unwashed clothes - they will get teased and bullied at school, you may get a letter or phone call from the school as to the child's well being or a referral to ss if it continued. Yes it will be the natural consequences, but is that what you want for your child?
They can eat what they like - So eating rubbish day in and day out will have a major impact on their health and weight. Natural consequences, absolutely, but have you seen what this can do to a child's self esteem? Health? Those things will not be so easy to win back, and you might start an eating disorder or a bad relationship with food. Tough is your view point, they need to learn....no, they don't. They learn to eat well, and care for themselves then they move on to full independence.
If I was left to my own devices from 13 I would have a massive problem with my parents later down the line. All the natural consequences you describe actually just sound lazy bad parenting to me.
Giving up caring for a 13 year child is called neglect.