My daughter came home from school on Friday and told me and my husband that some of her friends get paid if they get good grades (this one comes up every once in a while). My husband and I said that's not how we do things. Going to school and doing well/getting good grades are something we EXPECT our child to do; we don't reward for something that is expected. Neither my husband nor I ever got paid for good grades (we're both college grads); we got to go out to eat instead, and we got to pick where we got to go to eat. That's called celebrating--not bribing.
We allowed our daughter to pick out the place she would like us to go out to eat and celebrate. She picked Erin's Pub, an Irish pub/restaurant. It's a little pricier place than we normally go to, but for a "reward" or a celebration, yes, there are exceptions. We went last night. She made High Honors for 2nd quarter, 7th grade (she made honors first quarter).
Getting good grades is expected; they are what every child should be getting, and they are what every parent should be expecting. Yes, some classes are a struggle and she gets a B instead of an A; however, our advice to her has always been the same. If she is trying and studying and giving the class her all (meaning, she's not slacking off), then a B is just as important and good as an A because she worked hard to get it.
Good grades are important if a child wants to further themselves and go on to college or some other type of higher education/learning. If the child cannot give him- or herself enough self-confidence and self-mastery and self-motivation to get those good grades, then how is he/she going to motivate him/herself to continue doing well in higher education? Who's going to give the kid "money" for getting good grades in college and "encouraging" him/her to continue doing well? At some point in a child's life, the child has to give him/herself the motivation to do well FOR HIM/HERSELF.
We're teaching our daughter that it is up to her to strive for the knowledge and mastery she needs in her classes so that she obtains a healthy outlook on needing to depend on herself to get herself to where she needs to get in life. You can't keep coddling a child forever. At some point, he/she has to start taking responsibility for his/her own life. And I feel that starts with school, grades, and accountability.