You said that there would be game consoles without computers and so on ... these products in the era without smart phones may be used as entertainment for young people now!
Of course, it does not rule out that young people now develop entertainment methods suitable for their own times! After all, after 80s, before the popularity of game consoles and computers, there were entertainment methods such as jumping and throwing sandbags!
Today, with the development of social high-tech means, it is hard for us to imagine what we need to rely on to comfort our hearts without these entertainment activities or equipment. But looking back 30 years ago, what did everyone rely on for entertainment? Novels, radios, playing cards, mahjong, baskets, feet, rows, etc. , are very leisurely. A little further, writing poems, drawing pictures and even practicing calligraphy can be a kind of entertainment. Farther away, plant flowers, raise grass, lick cats and train dogs. Farther away, there are babies, health preservation, longevity, doubts, practice, hunting, organizing tribes, worshipping God and creating new things. All these, different times have different views on entertainment. It's just that for us now, life is rich in materials, food and clothing, but we lack ideas. No cell phone? If it is really gone, you may be bored for a while, but soon you will find other better ways of entertainment, so this false proposition is not a concern, because you are not in that environment, you can't imagine, just like many times you can see children in the countryside, their entertainment methods are more primitive, but they are just as happy. Maybe a puddle or a pile of sand and wheat straw can entertain you all day, which I realized when I was a child.
Develop sports! Enhance people's physique! There is no smart phone, and the whole people participate in sports. The busiest places are free gyms, reading rooms and androgens. They can play football, basketball, badminton, jogging, long-distance running, cycling, girls kicking shuttlecock and skipping rope. Suddenly returned to the 1967 national sports competition.