I feel like this list of rules is either unnecessary or will be completely unused anyway. Either she's taught her son not to do stupid things with the phone, or she's essentially trying to teach fire safety by giving him a flamethrower. And if she's taught him to use the phone responsibly before handing him the rules, it would demonstrate more trust if she just told him to be responsible and trust him with the thing.
But, as far as exact rules go:
1 and 2 are fine, whathaveyou. 1 is something my mom would say (and probably everyone's mom) and 2 can help keep the phone used for what she wants while also keeping the password easily accessible to the child (can be nice if you're going to have a secure password).
3 is, well, hilarious. It will get broken. I would not answer the phone in a public bathroom, even if the call was from the president, who was on a conference call with god. Plus some people who use public bathrooms (see: opinionated older individuals) might become offended and chastise you/be dicks if they think your parents raised you wrong. Not worth the risk.
4 will happen until it doesn't. It sounds nice and practical now, but what about that call he wants to make to his friend who's going to study algebra with him over the phone from 7-8:30? Or he's really close to beating that one level, just five more minutes, really? It'll happen, and mom will facilitate.
5 is a neat idea. Teachers would take it away. Bullies would steal it. Yeah, he might want to show off to his friends, but if he's responsible he'll know it'd be better left at home anyway.
6 is either another given or will never happen. If you're teaching a kid to save, you will have a fund where they can put this money and forget about it. You might even be making sure they're saving for the inevitable broken iPhone. Or you aren't teaching them to save, the phone will break, they will have no way to replace it and you will either have to do something about it or they won't have a phone. And once a parent gives a child a phone, that parent never wants to exist in a world where their child is not accessible at the push of a button again (especially a clingy parent). Either way, you're micromanaging their phone replacement insurance.
Any rule involving talking to other people or sending them your naked bits: If you have not instilled the utter terror of sharing information over the internet to your child (in the event that they cannot fully comprehend a lifetime of unemployment and shame from a single mistake made in youth, which seems pretty unlikely), you have done your child a disservice. Teach them the ramifications from over-sharing. You don't even have to exaggerate. You can have your life ruined from the silliest of things. If you're really cavalier, you can have your life ended. You are your information, and that information is not a secret once it's on the internet. And the internet never forgets anything.
Any rule involving being a douche: I didn't need this as a kid, because I learned the value of understanding people are on the other end of what I said over the net, and if I didn't want to hurt their feelings, I just had to remember they are people. Teach them that people are still people over the net and deserve the same respect you'd give them in real life, and this won't be an issue.
The porn rule: Give them a safe place at home to explore their sexual desires (like a porn folder on their personal computer) and this probably won't be an issue (who the hell wants to accidentally show their friends their porn anyway?). If he wants to use the phone for porn, I'd bet it's because he has to secretly look at it at home. Or is a sex addict.
Content controlling rules: Parents like to try to control what content their kids ingest, but I'll bet it goes something like this: kid downloads parent-approved songs because he's trying to please mom/mom told him what to download. Song goes un-listened to. Kid wastes 2x money on songs he hates and songs he likes so mom can feel like she's doing something.
As far as enjoying nature/life without the phone: take the dang kid to a summer camp without the phone. Don't rely on him to want to put it down. And don't ever discount the knowledge he can gain by googling every word he doesn't know and every subject he might want to learn, ever.
tl;dr: Honestly, most of these rules are silly/unnecessary or about to be hilariously outdated. But I guess, with rules from parents, it's quantity over quality. Hopefully most of these he'll do without question, but if not, I hope she's really ready for the arduous task of teaching someone how to only light candles with a flamethrower. Seems like it would be much easier to start with a match, but you don't get to be the best mom ever if you're giving your kid a cheap flip phone for Christmas.