It fucking depends. Kids lose and destroy shit constantly so if it’s a plushie and the kid keeps it with them on road trips then randomly chucks it out the window… it’s gone. Normal people understand that toys will all eventually be broken or lost and sometimes it happens surprisingly fast. If it’s not really meant as a toy though (i.e. great grandma’s doll from when she hid in an attic during the holocaust or similar sentimental value) never treat it as a toy - put it in a bank vault or storage locker until the kid is old enough to treat it delicately.