Cultural differences do exist, and so I do not understand why there should not be mandatory provision for exemptions.
1	Cultural	cultural	ADJ	POS	Degree=Pos	2	amod	_	_
2	differences	difference	NOUN	PL-NOM	Number=Plur	4	nsubj	_	_
3	do	do	AUX	PRES	Mood=Ind|Tense=Pres|VerbForm=Fin	4	aux	_	_
4	exist	exist	VERB	INF	VerbForm=Inf	0	root	_	SpaceAfter=No
5	,	,	PUNCT	Comma	_	11	punct	_	_
6	and	and	CCONJ	_	_	11	cc	_	_
7	so	so	ADV	_	_	11	advmod	_	_
8	I	I	PRON	PERS-P1SG-NOM	Case=Nom|Number=Sing|Person=1|PronType=Prs	11	nsubj	_	_
9	do	do	AUX	PRES	Mood=Ind|Tense=Pres|VerbForm=Fin	11	aux	_	_
10	not	not	PART	NEG	_	11	advmod	_	_
11	understand	understand	VERB	INF	VerbForm=Inf	4	conj	_	_
12	why	why	ADV	WH	PronType=Int	18	advmod	_	_
13	there	there	PRON	EX	_	18	expl	_	_
14	should	should	AUX	PAST-AUX	VerbForm=Fin	18	aux	_	_
15	not	not	PART	NEG	_	18	advmod	_	_
16	be	be	AUX	INF	VerbForm=Inf	18	cop	_	_
17	mandatory	mandatory	ADJ	POS	Degree=Pos	18	amod	_	_
18	provision	provision	NOUN	SG-NOM	Number=Sing	11	xcomp	_	_
19	for	for	ADP	_	_	20	case	_	_
20	exemptions	exemption	NOUN	PL-NOM	Number=Plur	18	nmod	_	SpaceAfter=No
21	.	.	PUNCT	Period	_	4	punct	_	_
