Not in my experience.
That may sound odd, but when it comes to new owners and people who have limited experience, they don't know what they don't know, and that means they are rarely right. I had one a couple of weeks go armed with spreadsheets of data and dyno curves and wanted me to design something based on his analysis. His logic didn't sound right to me, so I sat down and worked out where he was wrong and sent him out to do some objective testing and he came back and agreed that he was headed in the wrong direction.
For example. a customer can tell you they don't need brakes or fork brace and the first time they try to stop hard or go round a corner they suffer the consequences of that lack of understanding. It is the responsibility of those building and selling to ensure that a bike is safe and that the client knows that you won't just do what they say when what they ask for is dumb.
I will always listen to a customer and treat them with respect, but I will not build something that doesn't work, just because that's what they ask for. I have no need to be a part of someone else's epic fail. Maybe that's just me,
Your client may not understand trail braking but you can pretty much guarantee that he'll grab a handful of front brake half way round a corner when he panics one of these days and when the forks flex and he shoots off the road, don't be surprised when his mom's attorney turns up on your doorstep. Just sayin' we need to be responsible as builders when we build for an OP that doesn't understand what he's asking for.