but did you check out the link..... and the part that follows Guide to Foreigner to get a Senior Citizen Card in the Philippines, it goes on to say ,, As of 2018, foreigner senior citizens can enjoy the same perks and privileges as that of Filipino senior citizens,this is just one of the links i found about this subject since, reading Johnnijon's reply,
I am now adding as an edit to the above. I have just done further research, a bill was made in 2018 ,to include forigners because of their contribution to philippines but there is nothing to say it was passed as law , more research shows that the bill states that a senior citizen either pinoy or forigner to avail of a discount card must have no more than 60K in income per year, which means a foringer age 60 or above would have to be destitute and if thats the case they shouldnt be in philippines. so there it is