u/DnTdOnApS

So can anyone tell me why random people I'm not friends with keep requesting to join my world? Is it truly just random and ppl are just seeing who will let them join or is something up? I'm not the most knowledgeable when it comes to technology and I don't usually play online games. About 4 different times this week from different ppl I've got a request to join and I'm confused and a little worried they are trying to scam me somehow. Is something up or is this just something ppl do to reach out and find ppl to play with? Lol idk if I'm being dramatic but I'd rather be safe than sorry ( plus I kinda wanna say yes and just run around with ppl)