Of course not. RVs are built for recreation. Anyone who wants to live full time in a vehicle will have to modify it for that purpose, whether they start with a Prius, box truck, school bus, or van. Starting with a factory built RV makes this less of a task.No RecreateVehicle is remotely adequate for full-time live-aboard.
I agree, most factory built RVs are poorly made, quality control is major problem in the industry. A constant maintenance regime is required to keep everything in an RV in working order. But that doesn't negate the fact they have complicated systems in order to recreate the comforts that we've grown accustomed to in our stick built housing. My RV has 2 bedrooms, a completely equipped kitchen with all the normal appliances, a full sized bathroom supported by big tanks, 3 ACs and ducted heating to keep it comfortable regardless of weather, and essentially unlimited power with the built in generator. I can sleep, shower, cook, and lounge around just as comfortably as in a studio apartment. DIY builds don't come close to that level of comfort because very few people have the requisite skill, time, and money to create that level of sophistication. I have seen a couple of custom/professional van builds that offer that level of amenities.Comfort?
* little-to-zero insulation -- neither acoustic nor thermal
* multiple Holes! In! The! Roof!
* weak frames and suspension
* chinesium tires past their (alleged...) safe-date.
RVs, especially used, have great bang for the buck. 2-3 year old travel trailers can be bought for less than $15k. Class Cs less than 10 years old for under $40k. As consumers, the cost of materials alone could exceed the purchase of a well priced RV. Price out replicating a Class C using a box truck. Or a travel trailer using a cargo trailer.
RVs do not crumble to dust physically or financially, but they do depreciate. Fairly rapidly in most cases (past couple of years anomaly aside). If an RV is financed over 15-20 years, there's a high likelihood of becoming upside down during the loan term. This means it's financially foolish to do that in many cases, but not all. In the US, debts die with the debtor. From a time management or financial perspective, there are things are sound to do at 80 that wouldn't be at 40.* No way, no how, could I ethically or morally recommend acquiring a factory RecreateVehicle.
Not at a great interest rate, not for free.
They crumble to dust the minute they leave the factory.
And you are left with a decade of payments on a high percentage loan?