bad idea buying high mileage cars you will start getting problems
That's one of the worst generalisations I've read on this forum in a very long time
High mileage is not necessarily a bad thing. A car that has done 100k miles, but the majority of that was cruising up and down motorways will have had a far, far easier life in every respect than a car that's done less miles but all city driving. You cannot simply say high mileage = bad idea.
Also factor in service history. Has the car been well cared for, warmed up and down correctly, had regular oil changes, been driven with mechanical sympathy and appreciation and generally looked after well? All of this is far more important than simply how many miles has it covered. A car with lower miles but driven and cared for badly will be a much greater risk than a higher mileage car that has been respected.
High mileage is just one of many considerations, it is not the most important one and cannot alone be used to judge a cars worth or risk.