What are the ethics of taking advantage of a 'senior discount'?

I’m more than six decades old. As such, I now qualify for any number of so-called senior discounts:

- movie tickets
– 5% off at Kroger and other groceries
– hotel room discounts
– drug store items (some)
– restaurants

Here’s the dilemma. I don’t look my age, and I really don’t feel my age, although my drivers license says that I am 60+.

I feel bad about getting a senior discount because I don’t feel I should deserve it. On the other hand, I do qualify. And money is money.

Is there an ethical issue here?