The type of business is mostly irrelevant as the right type of person can make a business work as they plan carefully, research markets and competitors, do trials perhaps, and they certainly don't jump into something with only hope and blind faith. It's no different to any other country really. In any country if 10 people start the exact same business with the same start up capital there will always be a few that fail miserably within a few months, some who may last a year or so and maybe one or two that really make a success of it and build a profitable business
no age restriction. I got one as moved here in my 40's and wasn't married so it was the best practical option. The price has more than doubled though now for them compared to what I paid 4.5 years ago
I moved here with a couple of suitcases only and sold everything else or gave away and frankly I didn't even need most of the stuff in my suitcases. I wanted to build our house with hempcrete also but couldn't find a supplier here at the time a couple of years ago so used AAC blocks instead and we've just built a farm complex for composts and worms and eggs etc. I wish you well and it's great to see younger people moving out here.
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