Has anyone here ever adopted a child?

I always heard when u adopt and the child finds out afterwards, they get rude and aggressive not sure if this is a myth..

I know someone who had twins and dcyf is involved it so sad how there are ppl here as myself who really wants a baby and cant, then u have ppl that have that blessing and dont care about the kids..

Such a sad world, fyi my AF just showed her ugly face, been, im a bit emotional, TTC for 2+years... went to doctor last week did blood work have another appointment next week, so nervous