Shanghai Maglev ticket & Metro line

Hi...! I have 2 kids (1.15mtrs tall) and a senior citizen. I am planning to take Maglev from Pudong International Airport and transfer to another 2 metro subways. How much should I pay for each of my kids & the senior citizen? Is the Maglev & Metro pass would be the best option? since I have 2 more subways to transfer? what is best?

Thank you