Looking for updated crested education.

So I haven’t been in the gecko community in many years, but my daughter wants to get back into crested and gargoyles. She’s 15 now and pretty responsible, so I said yes. We have been looking on YouTube, and she pointed out no one was using lights or heating pads on the tubs. Are they no longer needed? Did I miss something in the years I been away? I was always told to have UVB and heat for my geckos;, cresteds, hybrids, leachie, giant day, tokay…. Can someone please educate me on this. I don’t want my daughter, or myself doing something that is going to harm her future pets. We live in an apartment so she is interested in tubs and not the glass enclosures, so that’s what we are looking to do.