NC for this as I... er...know this is ridiculous. Apologies in advance for the length.
Background: My DS is almost 20. He was a baby and due the MMR around the time of the Andrew Wakefield scandal. My exH had health anxiety and was paranoid about all the MMR/Autism stuff so we didn't give him the MMR but went with single jabs. Then at the age of 10 he was going on a school trip to France, needed to have had the MMR as there was an outbreak of measles in France at the time so I gave him the booster (we were NC with ex by that time).
Fast forward: around the age of 15/16 I started to think that my DS may be on the spectrum due to some of the characteristics that were becoming stronger (classic ASC traits) and started to do some research. Nothing had ever been raised at school or by any childcarers (he's high functioning). I tried to discuss it with him but he dismissed it and that was the end of the subject.
Fast forward again to now. For various reasons, DS has come to the conclusion that he is on the spectrum (I agree). He has done an online assessment which has confirmed to him that there is a "high probability" but he doesn't (yet) want to consider getting a diagnosis. He has really struggled with Covid and is completely against getting the vaccine (he's got sucked into the anti-vax conspiracy) and while doing his research he has come across the Andrew Wakefield/Autism/Vaccine information.
Now here's the question: DS is convinced that having the MMR at 10 'gave' him Autism as the 'symptoms' didn't really become obvious until he was well into his teens. I've told him that that's not the case as he definitely had the characteristics before the age of 10 but I just didn't know enough about it at that stage. BUT - I'm struggling to convince him of this as I'm not convinced myself that he did.
Has anyone else's ASC DC only displayed traits in their teens?
ps. I don't for one minute believe the Andrew Wakefield stuff.