It seems your thread got a wee bit off topic, and being a lady myself, I feel I can comment here. Firstly, everyone needs a bit of caring, love, intimacy, affection and attention, no matter what age. If said person really is average looking and reasonably fit, there's a very good chance he won't look 80. In fact once a man is past 70 ish, it can be impossible to tell whether they're 70, 90, or anywhere in between (although after 90, they look it, trust me, I know).
I think that the younger w/l might struggle with the idea of a man that age, but with maturity and experience hopefully comes the realisation that everyone deserves respect, and if they choose to spend their time and money with you, you treat them how they want and deserve to be treated, just like any other client who comes in, without judgement.
The only way I see age having an impact is on performance, however given that age is only one of a plethora of factors which can affect a man's erection, even this is not a given, and it's more of a concern for him rather than the w/l anyway.
I'm happy to see anyone who just needs a bit of looking after