In the Philippines, senior citizens are entitled to a 20% discount on public transportation fares, including buses, jeepneys, and trains, as per RA 9994. This also applies to taxis and ride-sharing services such as Grab, where seniors can avail of the discount upon presentation of a valid senior citizen ID. Remember that the application of this discount may vary, so it's best to confirm with the transport providers. For more detailed information, you can check with the local government or relevant transport agencies for current policies.