If your kids get excited about cooking and start finding recipes they want to make, be supportive. Take them to the store to buy ingredients. Invest in a spring-form pan if they want one.
Cooking is a life-long joy and necessity, so it’s worth at least as much sacrifice as gymnastics class, soccer, or music. Don’t skimp on this investment. Remember, these are the people who are going to cook you for you in your old age.