Odometer roll back

[steves6403]

Been looking to buy a 4x4 diesel for the last 6mth's , what a mine field.
I suppose covid didnt help LOL.
Ive seen a lot of low kms cars that look like they've done a lot more than what they state.
A google search confirmed my suspicions!!!
You can buy a plug in scanner that can adjust the kms for 400$ odd.
Apart from honest use when installing a reco, why have manufactures aloud this to happen.

I,m at a loss