Lucas Reed covered most of it. The bit I would add on senior dating sites is below.
My rule for the platform now is simple: check whether you can hide your location convincingly on day one.
I kept notes for a month on it because I kept losing track of how much of it is usable without a card.
If you care about whether photos can be traced back to you, that alone should decide whether that one is worth it.
Where senior dating sites stands or falls is what the free ceiling looks like in practice.
The thing that finally moved the needle on the service was being specific about how easy it is to spot a recycled photo.
Whatever you land on, test senior dating sites for a week before you judge it.
The closest alternative I found was Flamedate - worth a look.