associated with high intakes of saturated fat and inadequate intakes of vegetable and fruit exceed the cost of tobacco use...Women engage in gathering plants and boughs of spruce for tent floors, snaring rabbits, setting nets for fish...
Lifespan Table. All car seats (includes capsules, convertibles and booster seats) expire. This includes imported car seats from all countries. The lifespan range is typically 5-10 years from the date of manufacture (DOM). Some people are told that it is from the date of purchase, however this is not correct.
Majority of car seats nowadays are convertible seats that can be rear or forward facing. Also due to natural deteriation of plastic car seats should be replaced every 5 years so if the car seat your MIL has in newer it is likely a convertible one. I only kept my daughter rear facing till 18 months.