Every kid would be better if he or she was a British kid being told he or she is going to be a big brother.
The boy's reaction is priceless, his accent is priceless, his excitement about how he gets to tell his teacher is priceless and even his offer to let the baby sleep in his bed is absurdly sweet.
Relish this incredibly sweet moment, British mom. In two years, things are going to be a lot rowdier and less whimsical in the back seat of that car on family trips.
The only weird part is how much the boy doubts his mom is telling the truth.
I don't know what lies this mother constantly tells her 5-year-old son, but that child does not believe she is being honest with him.