If you don’t receive a thank you, do you…

I'd wait a bit - June is so filled with activities for these kids that they may not have had a chance to sit down and write them.

Maybe July 1st or so?

I absolutely understand the desire to know if they got them or not. I also know how hard it is to get a 17-18 year old to sit down and write thank you notes.

I've reached the point, no thanks stands. If they got it and did not thank you, they are lucky. If the didn't get it, will you replace the cash, that makes them lucky again if you do.

No thanks, no worry.

I no longer send cash. Recently I had a friend in rehab after surgery. I was sending cards, (no money) but any number went missing.
The same with Easter cards. Thieves just seem to target cards.

I guess i'd have the same question, are you replacing the cash if they didn't? 

So many don't bother to send out thank you notes these days. My mother was a huge stickler for thank you notes. My attitude is I send gifts to those I want to send to and don't expect a note. If I get one great, if not i'm not bothered. I would be concerned about things getting there too so I write checks and would put tracking on an actual gift it went through the mail just so I knew that it arrived.

Somewhat related, but not. I've had 2 wedding gifts mailed (one to my niece a couple hours away...chose to go that route rather than bring the gift to the wedding, one to my sons best friend on the opposite coast) as well as one baby gift (to another niece in the midwest) go completely unacknowledged in the past few years. I find it extremely irritating to not know for sure if they actually got them. I did finally send a note about 2 of the 3 gifts, only heard back from one of them.

OP: I hope you find out whether or not they received the cash. Please consider sending a check or even an e-payment next time!

no, i don't reach out.  i don't send cash or gift cards in the mail. it's either in person or by email.

When I was young, we weren't allowed to use a received gift until the thanks note was sent. 

Ds wrote all graduation thank you notes before he deposited the funds.
I wouldnt mail cash, but MIL does and so far it seems to have worked out ok.

I guess the question to ask yourself is "What do I hope to gain from reaching out?"

I would not mention anything, but if you feel that you need to, I would wait until the end of July. You sent it at the end of May and its just now the 20th of June. And Im sure they've been busy with graduations and parties, etc. Give them a bit of time to acknowledge your gift.  

I’m okay with not getting a thank you card, a text or DM is fine with me. But acknowledge it. I threw a baby shower recently for a coworker. She never sent a thank you card, text, email…nada. She also decided not to return to work and stay home with her baby. Happy for her, but unless it’s family…that’s my last shower that I’m planning and buying for.

I don’t need a thank you note, but most definitely a text, call or email to say thank you. Anything else is just rude.

It isn't unusual to receive HS thank you cards in August especially with boys. It's like the moms finally got their kids to get them written and sent before heading off to college. Most come within the month following their graduations.

I would probably ask one of the parents to check and see if it was received. With how goofy the mail has been lately, I’d feel bad if my gift was lost in the mail. I tend to give people gifts in person if possible otherwise I try to send a gift via Amazon or some other method where it’s shipped from where I bought it so it can be tracked.

It infuriates me when someone doesn't even acknowledge receipt of a monetary gift. Nowadays, a text of thanks is acceptable. At least you know they received it, and took the time to thank you. I have sent cash in the mail to the great-grandkids and am always nervous until I know they received it. Luckily, their Mom, [my DGD] is pretty strict about seeing that they send a thank you. It's usually a text, and that's okay with me. What do you gain by asking? You gain peace of mind.

I think I would wait a little while longer, and if you have not heard anything by then, reach out and just ask if they received your card. It doesn't have to sound like you're scolding them for not thanking you; you're just wondering if it was received. There's nothing wrong with that.