If they want to appeal to people in their 30s, then they need to do something that appeals more to middle aged people. Do something like Wii Sports, and they'll be reeled in like fish.

Nintendo has problem with teen age people not 30s people, teens are those that saying "Nintendo games are just for kids".

And Nintendo games are not easy, at least nothing easier than majority games on market. Nintendo games are very accessible, but there is huge difference between easy and accessible games.

I do think there is some merit to the OP, but don't think it's quite right in claiming people in their 30s is the core audience Nintendo should be aiming for. It's more so just the people that like those more mature looking games, like COD, Dark Souls, and whatever else is on PS4 and XBO consoles. They need those on the NX if they want NX to have a better shot. Those games aren't limited to 30 year olds either. People of all ages appeal to those games too, haha. It's just a matter of people having different tastes, and Ninten needs as many differing kinds as possible.

Well, SM3DW final levels are really challenging. DK:Tropical Freeze might be one of the most challenging (if not the most) platformer this gen. Pikmin 3 final leveI. XCX. Fire Emblem games. Exclusives like Bayonetta 1/2, SMTIV... I honestly think that Nintendo provides more challenging experiences than the average of the industry. A lot of them play themselves. They're not the most hardest experiences ever, but they definitely provide some challenge for those who seek it. And that's a good thing, games which can be enjoyed by everyone. I like that focus and I hope they keep the same one in the future regarding challenge. 

About the age, I think that Nintendo should focus on regaining a teen fanbase again. I'm almost sure that the demography of people playing Nintendo consoles are older than some people might think. I still remember when I was attending a Ninty event, and I was probably one of the youngest people in the room. I was 24 XD.

I bought an NES. It was great.

I bought an SNES. It was cool.

I bought an N64. It has that colorful logo but no biggie.

I bought a Gamecube. Xylophone music? Okay.....

I bought a Wii. The intro screen looked like a Fisher Price toy .

I bought a WiiU. Fucking Lego looking Mii's running around all crazy.

What self respecting grown man would feel cool with all of the baby shit on screen!?! The consoles themselves were fine . The games are some of the best around. STOP making the intro/menu so fucking childish. I get it. They want to appear family friendly and non threatening but it really is a turn off.

Remember that NX is March 2017 release, that mean you missing out on all the kids asking for Xmas gift. The early adopters are going to be gamer with disposable income that can invest in a console around March 2017. My claim is that the average gamer is around 30s, they also happen to be the same segment with the most discretionary income. I agree with a preivous post that Nintendo does struggle getting teanagers to demand Nintendo consoles because of their focus on familly friendly games. I agree with a previous post that at a certain age teenagers dont want to be connect to the Nintendo kids console. I wasn't going to get the NX right away but after seeing Zelda at E3 that's enough to convince me to get it Day 1 as long as the console is $500 or cheaper I want think twice about it.  

Especially since we had none of that shit on NES and SNES. Super Mario 3d World was mario in freakin Cat suit, the entire game was washed is childishness even the difficulty. It wouldn't be a problem if there was so many other choice but that was Nintendo only Holiday release and by time all 3rd party had left already. 

It is possible that they are missing out on a lot of sales from missing the holidays, but as long as it releases and has a good line up, there's no reason why people can't just buy it at that time. And if the console is really appealing, Nintendo can try to get them in the next holiday season, with a bundle and more games available. And if the aim are people in their 30s, they should have a stable income, so it would be fine for them to buy the console, as long as the console is good, has good games, and have money at the time to buy it.