I don’t think you can compare software from like 20 years ago to software today. Things got way more complicated and applications require a lot more work
Because software needs to be maintained. Well at least most software that has a subscription model is maintained and gets regular updates. People don’t work for free, you have to pay them
You still don’t need a blockchain to track product logistics. This is always gonna be centralised, just use a normal database.
Most of the forests in Germany aren’t truly old growth tho. Instead it’s basically all wood plantations