Are you entitled to this information?
Can others 'make up' stuff regarding the seller motivation that you will believe?
Standard responses: Need bigger/smaller home. Moving closer to family. Any response that does not reveal URGENCY would be appropriate.
Do you want to make your purchase strategy based on fabrication or the real data?
Consult the real estate professional you have hired and present a clean market value offer. If you don't you'll be asking, "Why are sellers rejecting your purchase offers?"
A--Home requirements changes with time, like birth in family, death in family. New job, loss of job.
Marriage, divorce. Children went to college. The home owner thinks value has gone down, why to pay mortgage.
People buy bigger house, and then they realize that they need smaller house.
Current owners are mostly selling because they are thinking that the prices have gone up and this is the right time to sell.