I've travelled all over the world with my family and haven't checked a bag in for 15 years.
We lay out everything we plan to take with us and then take away two-thirds of it and that's usually about enough for four cabin bags.
My kids did three weeks backpacking in Asia with us carrying everything in their school rucksack.
Even the missus ( and we all know what women are like for taking stuff they never wear ) joins in the pre-flight fun these days.