Cheaper, when you are young and single. Get a family and pay for every member. Get older and see your rates increasing. Also the rates won't drop if you're a pensioner.
You need to know your future, as it's more or less a decision for life.
But the 42% is the max tax-rate. As the tax itself is increasing dynamically, you are paying less for the income before the limit. So the average tax for your income is usually lower.
For example: A single will pay 42% for income above 60k, but the tax for the 60k income is more like 26%.
If you're single and earn well, you still might take home only about 60% due to mandatory health and social insurance contributions. Details vary, following calculator looks promising: https://www.nettolohn.de/
These video ID verifications were just shown last month to be unsafe by the CCC. Public health insurances in Germany aren't allowed to use it anymore.
Instructions how to fake your ID on these systems can be found in the net.
Looks nice, but I'm puzzled that for a scientific table the temperatures are given in Fahrenheit and Celsius instead of Kelvin.
I understand, that it's easier for the non-scientific reader, but in this case it should be adjusted to the language as well. E.g. most non-english readers are probably not familiar with Fahrenheit.
OTOH the drug Shkreli hiked the price at was already out of patent. So you can see the "free market" issues. Nobody cared about bringing competition as the price was too low.
You need to know your future, as it's more or less a decision for life.