Kind of like being a white male in American society, being neurotypical gives one the privilege of not ever having to think about one’s neurotypicality. Among the advantages this brings:

• The school system is optimized to deal with you and is generally equipped to teach in a way that you need.
• The way you’re compelled to act in a given situation is usually considered to be normal and expected. What you want to do is generally something that is considered acceptable, or at least understandable.
• Comparatively very little of your mental energy has to go into anxieties about interacting with other people, since most other people will communicate in a manner that is comfortable to you.
• You can blend into a wide variety of environments without anyone noticing you much, if you want.
• You don’t have guilt or other negative emotions born out of the idea that you are causing a burden for others due to a perceived impairment or special needs.
• You can have a much higher degree of trust in other people’s opinions to be a good predictor of your own about something. If a school has good ratings, for instance, you don’t have to wonder if it’s good for “people like me,” because the ratings are mostly generated from people like you.
• You never have to discuss being neurotypical, and (almost :) ) no one ever asks about it. Most of the assumptions people make casually about you are correct, or close enough to correct that they aren’t a problem.

As for disadvantages, there are a few:

• Because you fall into the very large category of “most people,” it can be difficult to stand out. You might have to put effort in if you want people to notice you.
• The things you find fun/desirable/interesting are often the same things most people do, so they cost more money and have more competition to get them.
• Not having to think about the privileges you have as a neurotypical person has made you less aware of the challenges those who are not neurotypical may face, so when you interact with people who aren’t neurotypical, you may have a feeling of walking on eggshells. Because you’re so used to dealing with people like yourself, dealing with people who have other needs and see the world differently can be a challenge.