Don't do it! Try to work around it if you will or you might regret it for a looong time. Children can be accommodated, you don't have to and shouldn't ruin your life for their sake. I am a terrible cynic, at the end they only going to put you into a home, take you money and house.
My parents did not sell their motorbike nor their yacht. I went into a backpack on dad's back on the bike and into a big bucket on board for a bath. It was fun.
Neither of us regretted it.
(never put them into a home, either)