Why do people have babies?
Let's say they stop having babies because of the reasons you cited, all of which are valid.
Within 25 years you would either have to try and get as many young immigrants as possible or:
have fast food places and restaurants shut down for lack of workers
have fast food become very expensive and restaurants become uber expensive
Within 35 years you would not have enough nurses and doctors to care for the the people that are still there
prices of basic services would skyrocket or basic services would start to break routinely for lack of upkeep (water, gas electricity)
food shortages would be common for lack of people to farm
Within 40 years only the very very rich will have access to health care because of the very limited number of health care workers driving the prices
Within 45-50 years, basic services will start to be shut off regularly because of a lack of repair and upkeep
The internet, TV, Movies, etc will practically cease to exist as the surviving people will be busy with farming and keeping basic services running
Within 55 years, there will be no health care at all for those who can not contribute actively to keeping society alive6
Within 60 years it will be every person for themselves, o grocery stores left, no farm produce getting to stores except for the very very rich who
will figure it out.
Within 70 years due to a lack of health care and basic services, the land will be human free,
as even the rich won't be able to purchase food anymore, or health care.
So keep telling people not to have children - and give back to "mother earth"
Or - everyone you encounter will be from a group that has lots of children, most likely very religious, and you will be in a uber restrictive society,
a minority who will either be pitied or ignored, an anachronism dying alone.
What a great idea, quit having children and encourage everyone you know to do the same!
I wish to add - NO ONE who thinks children are a burden should have them, if you don't want kids, don't have them - but encouraging others to not
have them is suicide - read above.
edit on 3-4-2014 by grandmakdw because: spelling and after thought