Absolutely because Nintendo wants you to only think about video games when you hold your Switch.

Youtube is most likely only allowed on there because its used for Nintendo's own video sharing functions.

What do you mean? The most popular streaming app of all time, Youtube, is on the Switch!

The Funimation app was recently added so while the process is very slow it'll probably get those eventually.

That doesn't make sense since the PS4 despite having various non-gaming apps has sold the most gaming software out of all consoles having recently overtaken the PS2 and should have a decent lead over it by 2023. Everyone with a Switch will have another device that has stuff like Netflix on it so it's less that people will spend less time playing games on their Switch and more they'll increase their total time using it by not having to go to another device when they want to use services like that.

So much fallacy on this thread lol 

The reason is simple OP: Nintendo just don't see them as worth it. We are talking about a device that don't even let you customize its interface, menus and store (and at least the store definitely needs some polish)

Nintendo look to all those apps, saw how small is Switch storage and battery and asked: Why bother using time and resources to run apps that you can use everywhere else? 

But I personally sorta disagree with this approach. I would rather use Netflix on my Switch (that I can use as a Tablet) than on my smartphone, plus the convenience of having all in a single device is just too practical to not enjoy it. More options are never a bad thing and I can't understand customers not liking it

What for?

Most TVs these days come with those included, and on the go, it's certainly not really much better than just watching on your phone considering how big those have gotten in the meanwhile.

Seriously, there was an argument to be made 5 years ago, but now, I don't see that point anymore.

That said, I can see Icaros point above of having all their favorite apps and games on one single device, but that's about it.

Rumour has it Netflix asks too much money to Nintendo for the licence (nothing unaffordable obviously) and I guess Nintendo doesn't want to pay anymore

Two thoughts:

1) Wii U had a ton of apps, not just streaming but also things like Miiverse. Wii U failed and I think Nintendo's analysis of why it failed lead them to think a device more focused on just gaming would work better. The Switch selling as well as it has only supports their perspective on this, I assume.

2) Probably most, maybe even a super majority of people now have either smart tvs or use Chromecast sticks/fire sticks/Roku sticks. The software on Switch would mostly be redundant unless you are watching somewhere else, which many don't do (I can't see many Switch users whipping out the device to watch a show at a coffee shop).

^ this.

Without a doubt, its just nintendo.
They dont see the value in letting their users, use their device, for entertainment, thats not gameing, or something they profit off of.

Almost every TV I've seen nowadays has those apps available through whatever OS the TV uses. Nintendo probably doesn't see any point in wasting money on licensing video apps that are probably already on so many other devices. They have Hulu and Youtube, and I guess Funimation, and that's it. I used Hulu on Switch a bit when I only had a "dumb" TV to play on, but both my living room TV and my bedroom TV have every major streaming app either loaded on the TV or available for download. I haven't used Hulu on my Switch in three years.

I also have a PS4, which I again stopped using as a streaming device once smart TVs became the standard. 

Because the fans will excuse pretty much anything. Same reason Nintendo is late on a lot of features. The lack of in-game voice chat or a party system is another thing (not to go totally off-topic) but I recall fans saying Discord/skype was better.