If you can't just uninstall them then disable them in the settings but occasionally they do come back if there are major updates to them and your Google Play is set to auto-update all apps, I've never had that since disabling the apps I don't want though.
Rooting your phone might not be a good idea as it can disable things like banking apps, secure folders and such, there are supposedly ways to hide your root but I never got them to work on my banking app and unrooting won't fix that if you have a digital fuse on your phone (samsung has these and once they're tripped they can't be un-tripped).
I think you can use ADB without rooting to uninstall apps that can't be done via the UI but you'll need a seperate computer to do this. Have a look at this link but, as always, do some research on the subject rather than taking a strangers word:
You'll be watching Barbie that day then I take it