sugar baby/sugar daddy

Just to cut a long story short I joined a sugar baby/sugar daddy site named "seeking arrangements" where it's like dating there's plenty of sugar daddies out there and local to you. So I've met one he's super rich and so sweet. Started speaking last week Monday and met the following Monday this one just gone.. anyway he is as sweet and as genuine as I initially thought he'd be.. So first thing I actually like him and I'm genuinely attracted (sexually too) I'm 18, he's 40, should I say "yes" to the sugar baby lifestyle or not?
To add, I'm on a gap, I live in London he's literally already offered to take me Dubai, he gave me £500 on the first date WE DIDNT EVEN KISS, but he's arranged that he'll give £500 per meet.