This will not include any pictures, just text; and a lot of text.
It has been suggested that I use MDF boards, insulation foam, etc for this and not Lego and other associated block toys.
However, for me, my nearest hard hardware shop is 3 miles away; which is two buses with walking inbetween; then it's more walking around because I don't know where anything is and probably won't see a member of staff, buy and pay for something; exit and if I have a sizable item; I'd have to call a taxi; wait for the taxi and have quite a pricey ride home. Then, it would be a struggle to store everything; which might need a shed outside. That would be more money and time. More money for tools and other necessary equipment.
Sure, I could shop online, but I am quite paranoid about online shopping. What with hackers and/or identity theft. (Asperger's Syndrome related)
When it would come to building, I legitimately would have zero ideas on what I would want to build, more than likely mess up somewhere, refuse to work on it to restore it, bin it or otherwise destroy it and go back inside and to my PS4, in need of relief due to stress.
However, buying Lego and other associated block toys; is a more simple and less expensive ordeal: empty my backpack and bring a couple of durable shopping bags; bus into town, go to shop number one, potentially buy a set of two; empty backpack and place purchases in backpack; go to shop two; potentially buy a set of two; place potential purchases in one shopping bag and place other shopping bag in full/partially full shopping bag; go to shop three; look at the Lego sets; decide on whether or not to buy a set; lunch, if budget allows, go to shop three, potentially purchase a set of two; bus back to the bus station/walk to bus stop home; bus home; unload haul after getting home.
Then it would be unboxing and part exploration, terrain planning, building and rebuilding; if I'm not completely satisfied. If not immediately, then it would be a pleasant afternoon to evening/evening of building, display what I build, then go about examining builds to see what I can do in terms of modifications; or if complete/partial disassembly would be necessary. No stress relief of headache relief needed.
Lego does not require any specialised tools or work area, not does it require any adhesives. Lego structures can be taken apart easily. Plus, I can simply modify any actual sets; my next pictorial post will feature such modified vanilla Lego build. Furthermore, as there is a vast multitude of IPs that Lego has a licence for, I can re-use builds for other gaming systems; for example, the Speed Champions garage builds, Lego City and Lego Creator can be reused for Bolt-Action with some modifications as urban scenery; potentially late war, as the Germans were being closed in on. Although, Lego Creator building sets do need to be heavily modified; as the scale is very un-proportionate with Warhammer, Bolt-Action and Fallout: Wasteland Warfare miniatures/models.
At the end of the day, it's all terrain, it's all wargaming scenery; no matter the materials. Whether its MDF, polystyrene, card stock, etc. Whether it's Lego or whether it's everyday refuse, e.g. toilet paper rolls, Pepsi/Coca Cola bottles, hand sanitizer bottles, etc. All you need is an idea and a plan.
TL;DR: MDF and other materials would actually stress me out and Lego does not stress me out at all in terms of building.