By toning your pelvic floor muscles, you'll be able to control your sphincter. It's important, not only physically, but also for your morale: you'll be able to get your life back to a normal again. Living with a weak bladder can be difficult and tends to get worse over time.
You'll boost your level of sexual satisfaction. Toned pelvic floor muscles are essential for a sexually fulfilled life and enhanced sensations.
If you want to have more children, future pregnancies will be easier: a toned pelvic floor will help you have a healthy pregnancy and delivery.
You'll protect yourself from the risks of prolapse (slipping down of the vagina) for years to come, which is a good enough reason on its own to get squeezing those muscles!