Now I hardly claim to have played every JRPG ever made, but at least in this console generation I've found grinding to be much less of a problem in JRPGs than it used to be, at least in the ones I've seen. I won't say it never becomes an issue because I'm sure there are still examples I'm not aware of, but by and large I only find myself having to resort to grinding if I'm doing endgame content or one particularly poorly designed boss. It's nothing like it was back in the 8 and 16 bit days when grinding was pretty much mandatory and it damn sure isn't like these western games that try to sell you XP boosters. For the most part it feels like they've figured out how much they need to guide you along the main path when it comes to exp gains. Of course, if you're the type to run away from every battle then that's another story.