I mean, a DTXplorer isn't top of the line (that would probably be this) but it doesn't seem bad as far electronic drums go. There are always drum / cymbal mutes for acoustic sets: https://www.amazon.com/Vic-Firth-Prepack-Inches-Hi-hat/dp/B000SSMJG2/ although Silentstroke heads are probably even quieter. The best thing to convince your parents would be to get someone like a drum teacher to explain to them the benefits of learning on acoustic drums.
I know if you put acoustic drums in a basement, they won't be that loud throughout the rest of your house (although this can depend on the basement too, lol).