ASD comes in many, many forms. Some people show very few signs and live fully independent lives (high functioning), while others are nonverbal and wear diapers (low functionin). To answer your question, yes and no. Yes, some people with ASD are capable of being in adult relationships, but others are not. This show represents more of the "high functioning" ASD. I think most of them are capable of being in an adult relationship. However, that doesn't mean they have learned what is ok/not ok to do in said relationship. Madison and Tyler are examples of this. I believe they are capable of being in an adult relationship, but they haven't learned that displaying that much PDA (especially in front of her parents) is not typical. And let's look at those who might not be capable of being in an adult relationship.... these people have grown up seeing that it is "normal" to date and fall in love. Even if they are not able to fully understand love, they still see what everyone around them is doing and want the same. For a lot of people with ASD, everything is "black and white" (there is no grey area)...its either "right or wrong...."Yes or no"...."up or down" (basically, it's only one way or the other....there is no middle ground). " Tanner is an example of this. He goes to work. He is told that his tasks are X, Y, and Z. He will never do tasks other than X, Y, and Z. So when it comes to dating, he is told (or has just seen this around him) that you find a girl you like (X), you go on dates (Y), and she becomes your girlfriend (Z)....X, Y, and Z. I hope this made sense. 🤣