You’re quite right, it shouldn’t be every time and I’d wager cold, hard, cash that it doesn’t happen to you or anyone else every time.
It’s not at all unusual for there to be 2 people or even 3 people getting dealt pocket pairs in the same hand. It’s also not at all unusual for someone else, in that same hand, to get dealt 2 suited cards.
If you just limp in with pocket 5, for example, and someone limps in with 93s don’t be surprised if you hit your set on the flop and they complete their flush on the turn or river … they have 1/4 of the deck as outs to complete their hand!
You need to learn how to read the board, make appropriately sized bets pre and post-flop and read other players. Limping with every hand and slow playing when you hit the flop, which is what I suspect you are doing, will nearly always end badly for you.
You are, of course, welcome to wonder and consider any and all of the wonderful things in the universe but, if I were you, I wouldn’t lose any sleep wondering about the legitimacy of RP. You are considering things that have quite a reasonable probability of happening purely by chance. In a world of 8 billion people, it would be most unusual if something with a probability of 1 in 8 billion didn’t happen, on average, every single day!
On this site, with thousands of hands per hour being dealt, you are going to see what you think is very unusual behaviour very frequently. The behaviour is not unusual or unexpected to mathematicians but, to people like you and me, it’s really difficult to understand that something with 1/1000 chance will happen many times per hour here.
Just enjoy the game and, if it interests you, put some time in to learn more about the different strategies that will help you win more chips, more often. There’s quite a few, very good, discussions here on Replay and massive amounts of totally free information on the rest of the internet.
Good luck on the tables!
Regards,
TA