I can’t agree more with the advice about using a stroller and the
DAS system if your son has difficulty with lines. We did a “well, we’ll see if he needs a stroller” approach in September (my son is also 6 and has ASD). That lasted all of 30 minutes before the meltdown cues started. We hightailed it back to the front and rented a stroller for the whole trip. It helped so much. It’s so important to set your expectations at a reasonable level. My son doesn’t have all-day park touring capabilities, so we never pack our schedules with plans. Quick service options work better for us because we never know how the day will go until we’re in it! We spend a LOT of time decompressing in the hotel. Out of 7 days, we only park hopped once last trip. We have to take it slow but that’s fine.