Powered Rails are Unable to Turn

I've never been able to turn in Minecraft Bedrock with powered rails. Some people want to make a track with only powered rails and redstone torches. I attached a .png file in this report. My friends were over and we played Minecraft with our Xbox Controllers connected to our iPad's Bluetooth. We were creating a mega theme park in Creative Mode. We wanted to make a ride with only powered rails. But one of them pointed out "You can't turn with powered rails". I said I will report it.