There are two things happening in Thailand which will force hiring managers to accept that job hopping is here to stay. Companies better find a way quickly to adapt to the changing market conditions.

So the two things are:

The labour market is contracting. More people leave the job market than entering. It means the pool of candidates and talent will get even smaller. There is really no unemployment. If you think it's difficult to find and hire people today, you ain't seen nothing yet.

Gen Y is in many cases the majority of any organisation, at least a major influence in any company culture. These are the young people you are now hiring. Be aware that they change jobs as the babyboomers change underwear. Often.