Having kids can be expensive especially when they're first born as you have the cost of diapers, formula, clothing they outgrow quickly, car seats, crib etc.
Then you also have the doctors appointments and the cost of the babies birth as well which isn't cheap.
As they grow up then you have school supplies, more clothing etc.
It's estimated that by the time you've raised just 1 kid from birth to age 18 you spend from $500,000.00 to $1 million dollars per kid over the 18 years.
Kids also take up a lot of time and you're tied down with them as well.