Do people with ASDs socialise? Yes, we do. I use 'we' in the widest possible sense of LFA/HFA/AS and anywhere in between. We do, but it looks totally different to how you expect. We do it our way, the way that fits with our needs, and in far far less quantity than others. No, it's not the same as learning to socialise in an NT way, which is I think what is often meant, but it's a different kind of socialisation, and for us, a valid one.
I vastly prefer to talk or work or just 'be' alongside someone rather than face to face with them. I won't choose to make direct eye contact with them, but I can see a surprising amount out of peripheral vision if I need to. I'll socialise online rather than face to face with people. If I do socialise directly, I prefer one to one, and it'll often result in me needing a day off to recover from the strain even after 4 decades of skills training and practice and all the brain ability I have. I can 'do' NT behaviour so well that there's not a soul who can spot me for what I am, but the cost to me is horrific. I got so worn down by it that I ended up with heart problems.
In a meeting, I can cope with the structure. The moment the meeting finishes, anything could happen, and I'm usually first out of the door before I have to do anything social. Yet people still (mostly) respect me and work with me and are still friends with me, despite all of this.
Do we need social skills training? Yes, in the same way as if we'd landed here from Mars and found we didn't speak the native language and needed to learn the basics for "which way to the loo" and "Mine's a glass of red please" etc (well, surely two essentials ). But our own 'social language' is not a broken sort of your language, but a language and way of being all of its own.
Does this mean we don't need help? Absolutely not. Just the right sort of help. Does this mean that children can't re-learn social skills without it exhausting them? I've no idea. I don't think anyone's ever tested them for happiness before and after, just measurable NT-appropriate responses.
I worry about anyone emphasising the social aspects before their wellbeing. Most people get it absolutely right, and make the right choices and for some children the socialisation is vital, so this is not a criticism of any one parent and any one child's situation. But generally, there is just such emphasis in some part of society on 'normalising' us and people saying "yay, they're cured!" when we're not.
What would actually help us I think is specific training and provision so that we're able to communicate our needs and have our needs met, specific funding so that we have an education we can cope with, specific assistance to find approriate jobs for those that are able to work. And society being aware of our differences so they don't bully or pity or deny or minimise, but respect us and work with us to enable everyone (us and them) to learn together. When there's respect, friendships follow.
I hear what people are saying about schools needing to respect us as individuals by having us in their midst, and for some children it works well. But for the majority of us, that's not a reality. We're just sitting targets for bullies, predators and perverts, whilst the rest of the class look on, wondering whose job it is to do something about it (not theirs -only about 1 person in 100 actually stands up to a bully on someone else's behalf, I read).