Foot orthotics are a commonly used treatment for a wide range of foot and leg dysfunctional problems. These are designed and helpful to fix alignment and biomechanical issues. All the scientific data shows that they are usually quite effective and the patient satisfaction type research shows that they are well accepted by those that have them. That does not imply that they don't have problems. They actually do have issues. They can only be used in footwear which has the space for the supports to fit into. This means that they are unable to be used in certain types of sports footwear and some shoes found in particular occupations. Also, in some climates closed in footwear is not too common due to the temperatures. Some people just have a philosophical argument to foot orthotics as they see them as being unnatural and as crutches which should not be used.
Although foot orthotics are pretty straight forward and will very easily be made to work in the short to medium term you will find solutions if users wish to pursue that choice. Exercise therapy is one alternative and muscle strength may be improved and used instead. Having said that, this will likely take several months to work and it will be a good idea to make use of foot orthotics in the beginning because they can help get some improvement virtually right away. If footwear is the issue and it is difficult for monetary, occupational, sporting or lifestyle reasons to change the footwear, then there are possibilities like the Archie Flip Flops that come from Australia and have a decent level of arch support constructed in. There are other kinds of footwear like these which do have support built in, but the amount can be quite smaller compared to the Archies and might not do much good. As always you should always confer with your podiatrist as to what they believe is the best choice for you.