Is $30/day actually possible everywhere?

It is very tight in cities like Bangkok or Kuala Lumpur, but easy in rural Vietnam or Northern Thailand.

Should I include alcohol in this budget?

No. Alcohol is the fastest way to blow a $30 budget. If you want to drink, you will need to increase your budget to $40.

How to travel Southeast Asia on $30 a day

To stay under $30 daily, stick to dorm-style hostels, eat exclusively at local street stalls or night markets, and prioritize slow travel using local buses rather than flights. Limit your alcohol intake to local beer and avoid guided tours in favor of walking or renting a bicycle.

Choose the right countries. Focus your time on the 'Banana Pancake Trail' countries: Vietnam, Laos, and Northern Thailand. Avoid Singapore and parts of Southern Thailand if you want to keep the $30 daily average realistic.
Use public transport exclusively. Avoid Grab or taxis. Use local buses and trains. In cities, use public ferry systems or walk. Book your long-distance bus tickets at the station rather than through online agencies to save the 20-30% booking fee.
Eat like a local. If a restaurant has a menu in English with pictures, it's likely over your budget. Find stalls where locals are queuing for noodles or rice dishes; these cost between $1.50 and $3.00.
Minimize accommodation costs. Book a bed in a hostel dorm for $6–$9 per night. Use sites like Hostelworld to check reviews, but book directly or walk in if the hostel isn't listed on booking engines to avoid service fees.

Is $30/day actually possible everywhere?: It is very tight in cities like Bangkok or Kuala Lumpur, but easy in rural Vietnam or Northern Thailand.
Should I include alcohol in this budget?: No. Alcohol is the fastest way to blow a $30 budget. If you want to drink, you will need to increase your budget to $40.