I had to buy a new phone this year to replace one. Because it was one of the smallest packages for what I wanted, I got myself a Samsung Note 10. (Srsly, why must phones now be that big, that the regular note series looks small?)
Also I did had some small travel plans this year for every second weekend, where I wanted take my Pentax SLR out or buy myself a Sony Rx100 if space in the backbag runs out. (Moved to next year.)
But now? I'm not sure.
Yes, the dslr with its bigger sensor would be better suited to get more details in each pic and would be a much easier tool to use. But, there aren't really visible on your averaged sized print. And as long my trip isn't focused on getting pictures of animals, I don't need more reach than the short-/portrait- tele lens from the phone already provides.
But I save myself massively on packing space, weight, theft prevention and stress.
And the last point I think is the biggest deal in the end. If I travel to relax, I don't want to focus on getting the best out of my equipment to justify bringing it.
(Or worse have to listen to others unasked opinion about my equipment choices.) A phone does the job and gets out of the way.
Sending pics home from a dslr? I hope you got your notebook with you and 1-2 hours in your hotelroom. I'm already done on the phone...