>2. Why can't people socialize online? It's even easier nowadays. It might not be the same thing but it can get pretty close.
It is not anywhere near close. Video calls transfer speech, tone of voice, and facial expressions at best. Body language is a vital part of face-to-face communication, and there is no video call equivalent of leaning in towards someone or putting your hand on theirs.
2. Why can't people socialize online? It's even easier nowadays. It might not be the same thing but it can get pretty close.