Making use of the the term stupid for a new investor who thinks that bitcoin is expensive is very wrong I believe you have also thought same before you finally know that one can actually purchase bitcoin little by little fraction without buying all of it at ones, most of us here has thought that the way so i think it's normal if a new investor thinks that one need to be well doing before before coming to think of bitcoin investment it's with tiime they will know that they were actually wrong thinking that bitcoin investment is only for the rich citizens.
If they don't want to be called stupid then they should start learning bitcoin from the basics before saying it's expensive.
Because after all those who say it's expensive only see from the outside but don't want to get to know more about what bitcoin is and I think stupid words are also concrete in this case because they talk but don't understand what they are talking about.
They are only focused on the value they have and how to think about how to profit in a short time which is impossible with the current value, therefore they consider bitcoin too expensive. But if they already know how bitcoin works including by collecting (buying) then they will not talk carelessly because they realize that saying bitcoin is expensive is a mistake.
I think the best thing is to get started, life they say is a teacher and experience is the best teacher. I believe that most of us bitcoin investors have learnt so much about bitcoin not because we attended bitcoin classes or lectures, but because we ventured in bitcoin investments. Generally in bitcoin investment one doesn’t have to know everything about bitcoin before starting investing in it, obviously it’s not possible to know it all, but as you venture into it you’ll be able to learn from your day to day experience while investing. The best thing you can do is to encourage this newbies who are desirous to start investing no matter how little they start with. Even if you think you’re a pro, there are some certain decisions you will make along the line which might likely not go your way in respect to your investment plan and targets, and you still go back to drawing board and fix things up again so you don’t jeopardize your investment portfolio. For a newbie who wants to start investing in bitcoin, you don’t need to know everything before getting started, all you need is just a basic knowledge which is nothing more than having your discretionary funds available, once you’ve gotten this then you’re ready to go, and as time goes on you begin to build your emergency funds while accumulating bitcoin.