Advantages and Disadvantages of Formula Milk

Most of my friends starting introducing milk or formula when their children are around one. Most of their children stop formula by 2, only a couple of them with children older than 2 are still on formula. I think there is no major issue since formula provide good nutrition for the children. One concern for continuing till the child is older (such as beyond 3 years old) could be cost. Another is likely whether one could wean the child from bottle if he/she is still having formula. Most of my friends do not think that there will be any health concerns as long as the child is still eating well. For example, my friend whose 2.5 years old daughter is still given formula simply because her daughter prefers the taste (over milk). Still, she gives her daughter both milk and formula (in a cup), in moderate amounts. One last concern would probably be the negative comments from others. Friends and relatives may give their opinion as it is uncommon for older children to still be having formula, so one has to be prepared for that too.