There are couple of reasons why aspies will look younger.
flat expressions = smooth unwrinkled foreheads.
wearing comfortable casual clothes (e.g. trainers, t-shirts, track suits etc.), rather than more formal age appropriate wear.
I also have no tattoos and wear no jewellery except a wedding ring. I wouldn't dream of any accessories or irrelevant items, so I look very decluttered.
I do look quite young for my age, but I'm not sharing a photo. I was carded the other week for alcohol, I'm 33 and the drinking age is 18, so pretty good going
Jason.
Another thing why aspies look younger is that we get a whole lot less sun/UV exposure then NT do. Excessive sun exposure ie. sun bathing, sun tanning can rapidly age the skin.