In fact there are insurers right now, which give a discount of up to 20% if you share your data with them and if you "follow the rules" like not driving so fast

In fact there are insurers right now, which give a discount of up to 20% if you share your data with them and if you "follow the rules" like not driving so fast, not doing so much acceleration, … The problem is, if more and more people switching to those insurances it becomes very expansive for people who mind their privacy.