The answer is: it depends. How large (or complicated) is the estate? Trusts are more expensive to create (and amend) than a will, and come with lots of rules to follow for the trustee(s) if it remains in force after a death to manage any portion of the trust for a beneficiary. Are all of the adult children well grounded, hard working people? Are they married, unmarried; any of them (or grandkids) with special needs?
I have now handled four estates in our family as personal representative. All of the people that passed (mother-in-law, father, mother, brother) had trusts in place, and it made things much easier. Fortunately, my parents trust had the framework for a Special Needs Trust for my brother who recently passed, as well as a follow-on trust for his son. I say fortunately because the 21 year old nephew has around a 9th grade education. In this case, the trustee manages the money until he turns 35. Without a trust amendment made before my father passed, I would have handed over a large chunk of money to the nephew.
A 30 minute consult with a family law attorney would point you in the right direction. It could be that a simple will is fine for now, but a trust may make sense 15 years down the road (after that lottery win!). Whatever you decide, don't forget to update the document periodically as things/heirs change.