Iron golems leaving

hi I have a Minecraft bedrock world that is my main and I have this village and all my iron golems keep leaving I have a wall all around my area but they just keep wandering away and not coming back villagers seem to do this also but they aren’t as bad I have a iron golem that just left went over the wall and left and villagers don’t go indoors at night they just keep doing whatever I need help with this our I need to know if this will be fixed