I am prescribed 20mg INSTANT RELEASE twice a day, so they are still prescribed but are less likely to be prescribed compared to the extended release. I only take a few times a week, and usually at a higher dose i was doing 60mg at once twice a week (which is pretty high, and wasn't because of a tolerance, it was just real euphoric at that dose). But even with being prescribed klonopin, that wasn't enough fully enough to stop the evil comedown (even from prescribed dose, which is why i don't take it everyday as prescribed).
For fun a few times (since i like to see how people react to things) i gave two different friends at work two 20mg adderalls to take at the same time under my supervision at seperate occassions. First girl, said she has extreme energy and felt real good but didn't wanna become addicted to them and didn't admit it until much later on the reason she was being extremely bitchy the next day because she said she felt like shit, i giggled and said, well do you think you really could take them everyday, and handle how you felt since it will continue to get worse, so she was like no more for me. My other friend, started being more social and less anxious and felt real good but i'm assuming didn't feel it enough (even at that dose) since she didn't feel the more common symptoms someone with no tolerance to adderall taking 40 mg IR should.
So generally speaking, i think 10mg is real low, me or most of the people i know would not feel much of a buzz from 10mg of adderall even with no tolerance, but a few people are more sensitive to them and are lucky. I think a 30mg of instant release is a good amount, it's not too high to start with, and it's also should be enough to feel it pretty good if you don't have a natural tolerance for needing more to feel the same effects as others (like me).
Don't expect it to feel like a typical drug, your not gonna feel extremely fucked up etc, it has a mild body high, and you will be more alert, speedier, social concentrated+motivated and horny with not so much but slight tingles running through your body. AND MUSIC IS AMAZING. Try to have weed, a benzo, or anything for coming down assuming it's a safe dosage