Hi, the specification is very much clear, we can build child + adult survey website using php and mysql database. the website will be fully dynamic, easy to manage form backend for admin and will be fully responsive ( mobile friendly). Be sure of quality work on time form our side. Kindly check our profile page to see reviews from other employers, This will give you better idea of our work and quality we deliver. Be sure of that. Let us know if you find our offer interesting and would like to discuss. Thanks