Let's start by analyzing the Ten of Pentacles card. The Ten of Pentacles represents a time of great wealth and abundance. It symbolizes personal achievements and is a sign of acceptance and satisfaction. The card suggests that you can be successful in finding the love of your life at age 50, but also that you may be open to seeking it earlier if you wish. Are you ready to accept the possibility that love will come into your life when you least expect it?
The second card in the reading is Death reversed. Reversed Death indicates that something is not working and has not been fully resolved as intended. It may mean that you need to step back and look at the situation from another perspective, rather than rushing into making decisions based on emotion. So while you may accept the possibility of finding love, you should also consider whether to reject the pressure to seek it out in a way that you're not comfortable with.
Bottom line, the cards suggest that you can try to accept the possibility of finding the love of your life at age 50, but also that you should be prepared to reject the pressure to look for it in a forced or uncomfortable way. Consequently, one could say that the answer to your question is No: you don't necessarily have to find love at age 50, but you can always decide when it's right to do it for yourself.