It's a good idea to start "Training Center for Kids, don't worry about either business will be online or offline just list down what trainings will be provided in your centre then make sure either people are looking for your services or not in your city or country.
In this pandemic situation, it is good to add online option for your Training nter, I hope you heard about Learning Managemen System which helps to add all your training classes at one place so that your students can view all your training classes.
We know that covid 19 is going on, so my answer would be big No, because people first priority will be always Health. So you can get lose in long term.
So you can consider business as online term. We have also business related to Thanksgiving Coloring pages crafts activities printables 2020 and we are also convert our business from offline to online.