sir,i am an example of your sons kind
i got last year aieee AIR4000,BITSAT-282missed by one mark,and IITJEEnot qualified,and in local state entrance got 1000
all my family members said to join in aieee,but i want to drop
i finally won and dropped
this year i got air 4800in iitjee(6033144),bitsat 310 ,these are not big ranks but they are certainly acheivement for me
i request you to allow your son to drop an year and please dont give him a stress by comparing with this years ranks ,i saw so many students who dropped like your son and acheived spectacular ranks
but another sugession is you just apply for bitsat and aieee so that your son may change his mind as he gets top seats in these colleges,if he do not change its better to drop if not
he may feel sad in whole of his life as he missed iitjee
i personally think that your support while dropping is very very important