Yes, of course. Many students and/or their families do. It is an achievement, and should be recognized.
No, graduation presents are optional. You do not have to send one.
When you receive a college graduation announcement after the event, it's considerate to acknowledge it with a congratulatory message, either through a card, text, or email. If you know the graduate well, you might also consider giving a small gift or gift card as a token of your support. It's important to express your pride and happiness for their achievement, even if the event has already passed. Remember to be sincere and personal in your communication.
Kids who graduate from college may appreciate gift cards so they can buy things they may need. Gift cards make great gifts and they are available from many different retailers.
anything like, and in between the price range of, a watch and a car
at the graduation
What a selfish and foolish question. They already received it most likely!
No, you do not have to get them a gift, however it would be nice to show your appreciation for their support through the years in some way. Personally, I think it's a great idea! Good for you! Proud of you!!
The amount of money typically given as a gift for a Ph.D. graduation varies, but it is common to give between 50 to 100 as a gift.
See great thread on http://www.mamasource.com/article/is-a-graduation-gift-required
Graduation cards are not a must but a thought provoking gift. It is not necessary to buy all of them a gift, but buying each one shows that they were in your thoughts.
Required, no. A gift is never required for any occasion.
A camera, a gift, and a smile.