Okay, Brad Pitt is 62, I wouldn't put him on the 'don't date' list.
Let's assume for a moment that this guy is just misunderstood (just for a moment).
I'm 62, my DH is 64 (I don't care if I'm being ageist). We've been married nearly 40 years, hope to stay that way for some time yet, but he is starting to have some minor health issues. I'm now really having to be quite pushy with getting him to take better care of himself. I've always assumed we would have a long and active retirement (not that any of us can really plan these things).
These minor health issues my DH has have meant that I'm suddenly really noticing older men and the health issues that come with age for all of us eventually. It's frightening at times, really starting to see what could be ahead for any of us. But, after such a long marriage, it will be a case of in sickness and in health.
But, apply this to your new man and a 20 year age gap when you are 62 and he is 82. He may look young now, but the likelihood is that you will become his carer. In your 60s you won't be travelling the world and dancing your cares away, you'll be dealing with a slowing of life, a decline in mobility and quite possibly far more.
Now, if this guy does look like Brad Pitt (or whoever you fancy) and seems perfect in every way, you may well decide it's a risk worth taking. But, he's not, the meal ordering, a toxic ex and a daughter who doesn't speak to him are very big red flags. Do you really want to risk taking this guy on? Even if he seems good for his ages now, he's got plenty of obvious faults. Throw him back and find someone who is more suited to you.