Dating a single dad w/ autistic child

I met this guy on bumble a few weeks ago. I'm 38 and he's 39. He has a 14 year old son who is in the spectrum. I have no kids and don't know much about autism. I went on his Facebook and it's mainly just pictures of him and his son. I have never dated somebody with kids. I asked about his son's mother but he turned out to be a widow. His wife died 11 years ago from breast cancer. Does anyone have any advice about dating a man with a kid? Especially a special needs kid?