Hi S..
You've gotten a lot of good advice and thoughts. Just want to add my 0.2 cents worth. My daughter also had very large tonsils (I often wondered how on earth she could swallow food) and wasn't particularly bothered by them. She did snore some and got a cold about once a year, but since her father also snores a lot, I never considered it a problem.
However, I wanted them removed while she was young if there was any chance that they should be removed. I had mine removed at 34 and it was a nightmare for two weeks and I didn't want my child to go through that. We had her evaluated by an ENT several times and finally they thought they should be removed. We had the surgery about 6 months ago, shortly after she turned 6 yrs old. The doctor who performed the surgery told us after that they were much larger than they originally thought, that they would have been oversized for an adult and it was a good thing we did it.
She had pain that first day, but lots of pain medication. But the next day she was eating normally (I didn't eat for 2 weeks and ended up in the hospital again on IV fluids when I had mine done) and running around like nothing happened. She never snores now, hasn't been sick since, and her school work has improved because she is now sleeping so well at night. In the end, we were really glad we had it done and have no regrets.