are the tutorial `s teaching enough ?

So we all went through the tutorials with ashe where the announcer taught you how to move and use q,w,e and r abilities. But that is about all they teach you nothing really about the interface of the game and i was lucky enough to have a good friend who had been playing league since the beta teach me everything i needed to know but. Most people are not that lucky like if i go on the beginner forums ill see questions like what do i buy hoe does the shop work what is mid or bot what is adc and some people are nice enough to explain to them but others will leave them in the dust and then get mad when they do poorly and that might drive them away from the game so i think they need to remake the tutorial and show more in dept like go through the different type of items and what to buy for different types of champions like if your playing a mage it will be like it is a good idea to start dorans ring and with mana potions and teach them about the meta as there is a lot of abbreviations in the game and it can be very confusing and overwhelming to a new player .so tell me what you think of my proposed changes