I totally reject your assertion. It's ageist and non of your business what he does with his love.
Not everyone subscribes to marrying, nor marrying someone the same age. Life would be so boring if that were true for everyone.
Get this, people are now even marrying across cultures/countries and religions. What the????
Worst thing you could ever do is marry someone same as you and spend your life looking in the mirror seeing the same two people. Live a little and embrace life. Not everyone marries their childhood sweetheart. Yuk.
