Yes it is ultimately inconsiderate and selfish :-)
But it is still pathetic that the law has to be entroduced to FORCE people to stop certain behaviour because the value system in society does not bring up people to comprehend such basics of social consideration in the first place :P
If there was no law, they would keep doing that (even in front of their toddlers) as they do not actually understand the reason why they should stop doing that, or are they have been conditioned to cognitively ignore or reject given knowledge why they should stop doing that.
I remember back in the day I thought it terrible that they had to make a law to make people do what they should ultimately beer doing, or not, themselves.
At least it all ends well!