It's true that Welcome is a simple but very powerful word. It's uses in situations can helps maintain peace and quorum. Gratitude, respect, acknowledgment, etc can be found and valued with the use of this words. That's why children must inclucate the habit of using this word Welcome often to foster great relationship. Good luck
Welcome is powerful word but we often see it as a mere word without effects.. our kids and the younger generation should have that habit inculcated into them.
Thanks for your thoughts