Romeo Miller to Colleges -- STOP RECRUITING LEBRON JR. ... 'Kids Need To Be Kids'

Add Romeo Miller to the group of people who think 10-year-olds shouldn't make college plans ... 'cause the ex-child star tells TMZ Sports the fact that schools are offering scholarships to LeBron James Jr. is bad for everyone.

LeBron James Jr. -- aka "Bronny" -- has been tearing it up on the court ... creating RIDICULOUS highlights while leading his 4th grade squad to an undefeated 2-month run.

In fact, his famous says colleges have been reaching out ... and it's been pissing him off -- claiming universities should face SANCTIONS for going after kids that young.

Enter Romeo ... who wasn't just a kid star, but also played college ball at USC ... and he tells TMZ Sports he's right with Team LeBron on the issue.

"It's not good business, kids need to be kids."

Check out the clip -- Romeo says he knows what the James family is going through, because his little brother is a top-ranked baller too ... but his father Master P has figured out an effective way to put a stop to out-of-line recruiters.